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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.132 by root, Thu Jan 4 01:35:56 2007 UTC vs.
Revision 1.500 by root, Sat Jan 16 00:08:33 2010 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
		25	use 5.10.0;
3	use utf8;	26	use utf8;
4	use strict;	27	use strict qw(vars subs);
5		28
6	use Symbol;	29	use Symbol;
7	use List::Util;	30	use List::Util;
8	use Storable;	31	use Socket;
		32	use EV;
9	use Opcode;	33	use Opcode;
10	use Safe;	34	use Safe;
11	use Safe::Hole;	35	use Safe::Hole;
		36	use Storable ();
		37	use Carp ();
12		38
		39	use Guard ();
13	use Coro 3.3 ();	40	use Coro ();
		41	use Coro::State;
		42	use Coro::Handle;
		43	use Coro::EV;
14	use Coro::Event;	44	use Coro::AnyEvent;
15	use Coro::Timer;	45	use Coro::Timer;
16	use Coro::Signal;	46	use Coro::Signal;
17	use Coro::Semaphore;	47	use Coro::Semaphore;
		48	use Coro::SemaphoreSet;
		49	use Coro::AnyEvent;
18	use Coro::AIO;	50	use Coro::AIO;
		51	use Coro::BDB 1.6;
		52	use Coro::Storable;
		53	use Coro::Util ();
19		54
20	use Digest::MD5;	55	use JSON::XS 2.01 ();
		56	use BDB ();
		57	use Data::Dumper;
21	use Fcntl;	58	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	59	use YAML::XS ();
		60	use IO::AIO ();
24	use Time::HiRes;	61	use Time::HiRes;
		62	use Compress::LZF;
		63	use Digest::MD5 ();
25		64
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	65	AnyEvent::detect;
27		66
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	67	# configure various modules to our taste
29	$YAML::Syck::ImplicitUnicode = 1;	68	#
		69	$Storable::canonical = 1; # reduce rsync transfers
		70	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
30		71
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	72	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		73
		74	# make sure c-lzf reinitialises itself
		75	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		76	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		77
		78	# strictly for debugging
		79	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
32		80
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	81	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		82
35	our %COMMAND = ();	83	our %COMMAND = ();
36	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
		85
		86	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
		89	our %EXT_CORO = (); # coroutines bound to extensions
		90	our %EXT_MAP = (); # pluggable maps
38		91
		92	our $RELOAD; # number of reloads so far, non-zero while in reload
39	our @EVENT;	93	our @EVENT;
40	our $LIBDIR = datadir . "/ext";	94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
41		96
42	our $TICK = MAX_TIME * 1e-6;	97	our $CONFDIR = confdir;
43	our $TICK_WATCHER;	98	our $DATADIR = datadir;
		99	our $LIBDIR = "$DATADIR/ext";
		100	our $PODDIR = "$DATADIR/pod";
		101	our $MAPDIR = "$DATADIR/" . mapdir;
		102	our $LOCALDIR = localdir;
		103	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		104	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		105	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		106	our $RANDOMDIR = "$LOCALDIR/random";
		107	our $BDBDIR = "$LOCALDIR/db";
		108	our $PIDFILE = "$LOCALDIR/pid";
		109	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		110
		111	our %RESOURCE;
		112
		113	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		114	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	115	our $NEXT_TICK;
45	our $NOW;	116	our $USE_FSYNC = 1; # use fsync to write maps - default on
		117
		118	our $BDB_DEADLOCK_WATCHER;
		119	our $BDB_CHECKPOINT_WATCHER;
		120	our $BDB_TRICKLE_WATCHER;
		121	our $DB_ENV;
		122
		123	our @EXTRA_MODULES = qw(pod match mapscript);
46		124
47	our %CFG;	125	our %CFG;
48		126
49	our $UPTIME; $UPTIME ||= time;	127	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	128	our $RUNTIME;
		129	our $NOW;
51		130
52	our %MAP; # all maps	131	our (%PLAYER, %PLAYER_LOADING); # all users
53	our $LINK_MAP; # the special {link} map	132	our (%MAP, %MAP_LOADING ); # all maps
54	our $FREEZE;	133	our $LINK_MAP; # the special {link} map, which is always available
55	our $RANDOM_MAPS = cf::localdir . "/random";	134
56	our %EXT_CORO;	135	# used to convert map paths into valid unix filenames by replacing / by ∕
		136	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		137
		138	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		139	our $LOADAVG; # same thing, but with alpha-smoothing
		140	our $JITTER; # average jitter
		141	our $TICK_START; # for load detecting purposes
		142
		143	our @POST_INIT;
		144
		145	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		146	our $REALLY_UNLOOP; # never set to true, please :)
57		147
58	binmode STDOUT;	148	binmode STDOUT;
59	binmode STDERR;	149	binmode STDERR;
60		150
61	# read virtual server time, if available	151	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	152	unless ($RUNTIME || !-e $RUNTIMEFILE) {
63	open my $fh, "<", cf::localdir . "/runtime"	153	open my $fh, "<", $RUNTIMEFILE
64	or die "unable to read runtime file: $!";	154	or die "unable to read $RUNTIMEFILE file: $!";
65	$RUNTIME = <$fh> + 0.;	155	$RUNTIME = <$fh> + 0.;
66	}	156	}
67		157
68	mkdir cf::localdir;	158	eval "sub TICK() { $TICK } 1" or die;
69	mkdir cf::localdir . "/" . cf::playerdir;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		159
74	# a special map that is always available	160	mkdir $_
75	our $LINK_MAP;	161	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
		162
76	our $EMERGENCY_POSITION;	163	our $EMERGENCY_POSITION;
		164
		165	sub cf::map::normalise;
		166
		167	#############################################################################
		168
		169	%REFLECT = ();
		170	for (@REFLECT) {
		171	my $reflect = JSON::XS::decode_json $_;
		172	$REFLECT{$reflect->{class}} = $reflect;
		173	}
		174
		175	# this is decidedly evil
		176	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
77		177
78	#############################################################################	178	#############################################################################
79		179
80	=head2 GLOBAL VARIABLES	180	=head2 GLOBAL VARIABLES
81		181
…		…
88	=item $cf::RUNTIME	188	=item $cf::RUNTIME
89		189
90	The time this server has run, starts at 0 and is increased by $cf::TICK on	190	The time this server has run, starts at 0 and is increased by $cf::TICK on
91	every server tick.	191	every server tick.
92		192
93	=item $cf::LIBDIR	193	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		194	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		195	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
94		196
95	The perl library directory, where extensions and cf-specific modules can	197	Various directories - "/etc", read-only install directory, perl-library
96	be found. It will be added to C<@INC> automatically.	198	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		199	unique-items directory, player file directory, random maps directory and
		200	database environment.
97		201
98	=item $cf::NOW	202	=item $cf::NOW
99		203
100	The time of the last (current) server tick.	204	The time of the last (current) server tick.
101		205
102	=item $cf::TICK	206	=item $cf::TICK
103		207
104	The interval between server ticks, in seconds.	208	The interval between server ticks, in seconds.
105		209
		210	=item $cf::LOADAVG
		211
		212	The current CPU load on the server (alpha-smoothed), as a value between 0
		213	(none) and 1 (overloaded), indicating how much time is spent on processing
		214	objects per tick. Healthy values are < 0.5.
		215
		216	=item $cf::LOAD
		217
		218	The raw value load value from the last tick.
		219
106	=item %cf::CFG	220	=item %cf::CFG
107		221
108	Configuration for the server, loaded from C</etc/crossfire/config>, or	222	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
109	from wherever your confdir points to.	223	from wherever your confdir points to.
110		224
		225	=item cf::wait_for_tick, cf::wait_for_tick_begin
		226
		227	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		228	returns directly I<after> the tick processing (and consequently, can only wake one process
		229	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		230
		231	=item @cf::INVOKE_RESULTS
		232
		233	This array contains the results of the last C<invoke ()> call. When
		234	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		235	that call.
		236
		237	=item %cf::REFLECT
		238
		239	Contains, for each (C++) class name, a hash reference with information
		240	about object members (methods, scalars, arrays and flags) and other
		241	metadata, which is useful for introspection.
		242
111	=back	243	=back
112		244
113	=cut	245	=cut
114		246
115	BEGIN {	247	$Coro::State::WARNHOOK = sub {
116	*CORE::GLOBAL::warn = sub {
117	my $msg = join "", @_;	248	my $msg = join "", @_;
118	utf8::encode $msg;
119		249
120	$msg .= "\n"	250	$msg .= "\n"
121	unless $msg =~ /\n$/;	251	unless $msg =~ /\n$/;
122		252
		253	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		254
123	LOG llevError, "cfperl: $msg";	255	LOG llevError, $msg;
124	};	256	};
125	}	257
		258	$Coro::State::DIEHOOK = sub {
		259	return unless $^S eq 0; # "eq", not "=="
		260
		261	warn Carp::longmess $_[0];
		262
		263	if ($Coro::current == $Coro::main) {#d#
		264	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		265	return;#d#
		266	}#d#
		267
		268	# kill coroutine otherwise
		269	Coro::terminate
		270	};
126		271
127	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	272	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
128	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	273	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
129	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	274	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
130	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	275	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
131	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	276	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		277	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
132	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	278	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
133		279
134	# we bless all objects into (empty) derived classes to force a method lookup	280	# we bless all objects into (empty) derived classes to force a method lookup
135	# within the Safe compartment.	281	# within the Safe compartment.
136	for my $pkg (qw(	282	for my $pkg (qw(
137	cf::global cf::attachable	283	cf::global cf::attachable
138	cf::object cf::object::player	284	cf::object cf::object::player
139	cf::client cf::player	285	cf::client cf::player
140	cf::arch cf::living	286	cf::arch cf::living
		287	cf::map cf::mapspace
141	cf::map cf::party cf::region	288	cf::party cf::region
142	)) {	289	)) {
143	no strict 'refs';
144	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	290	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
145	}	291	}
146		292
147	$Event::DIED = sub {	293	$EV::DIED = sub {
148	warn "error in event callback: @_";	294	Carp::cluck "error in event callback: @_";
149	};	295	};
150		296
151	my %ext_pkg;	297	#############################################################################
152	my @exts;
153	my @hook;
154		298
155	=head2 UTILITY FUNCTIONS	299	=head2 UTILITY FUNCTIONS
156		300
157	=over 4	301	=over 4
158		302
159	=cut	303	=item dumpval $ref
160		304
161	use JSON::Syck (); # TODO# replace by JSON::PC once working	305	=cut
162		306
		307	sub dumpval {
		308	eval {
		309	local $SIG{__DIE__};
		310	my $d;
		311	if (1) {
		312	$d = new Data::Dumper([$_[0]], ["*var"]);
		313	$d->Terse(1);
		314	$d->Indent(2);
		315	$d->Quotekeys(0);
		316	$d->Useqq(1);
		317	#$d->Bless(...);
		318	$d->Seen($_[1]) if @_ > 1;
		319	$d = $d->Dump();
		320	}
		321	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		322	$d
		323	} || "[unable to dump $_[0]: '$@']";
		324	}
		325
163	=item $ref = cf::from_json $json	326	=item $ref = cf::decode_json $json
164		327
165	Converts a JSON string into the corresponding perl data structure.	328	Converts a JSON string into the corresponding perl data structure.
166		329
167	=cut
168
169	sub from_json($) {
170	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
171	JSON::Syck::Load $_[0]
172	}
173
174	=item $json = cf::to_json $ref	330	=item $json = cf::encode_json $ref
175		331
176	Converts a perl data structure into its JSON representation.	332	Converts a perl data structure into its JSON representation.
177		333
178	=cut	334	=cut
179		335
180	sub to_json($) {	336	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
181	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
182	JSON::Syck::Dump $_[0]
183	}
184		337
185	=item my $guard = cf::guard { BLOCK }	338	sub encode_json($) { $json_coder->encode ($_[0]) }
		339	sub decode_json($) { $json_coder->decode ($_[0]) }
186		340
187	Run the given callback when the guard object gets destroyed (useful for	341	=item cf::post_init { BLOCK }
188	coroutine cancellations).
189		342
190	You can call C<< ->cancel >> on the guard object to stop the block from	343	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
191	being executed.	344	but I<before> the server starts ticking again.
192		345
193	=cut	346	The cdoeblock will have a single boolean argument to indicate whether this
		347	is a reload or not.
194		348
195	sub guard(&) {	349	=cut
196	bless \(my $cb = $_[0]), cf::guard::;
197	}
198		350
199	sub cf::guard::cancel {	351	sub post_init(&) {
200	${$_[0]} = sub { };	352	push @POST_INIT, shift;
201	}
202
203	sub cf::guard::DESTROY {
204	${$_[0]}->();
205	}	353	}
206		354
207	=item cf::lock_wait $string	355	=item cf::lock_wait $string
208		356
209	Wait until the given lock is available. See cf::lock_acquire.	357	Wait until the given lock is available. See cf::lock_acquire.
210		358
211	=item my $lock = cf::lock_acquire $string	359	=item my $lock = cf::lock_acquire $string
212		360
213	Wait until the given lock is available and then acquires it and returns	361	Wait until the given lock is available and then acquires it and returns
214	a guard object. If the guard object gets destroyed (goes out of scope,	362	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
215	for example when the coroutine gets canceled), the lock is automatically	363	for example when the coroutine gets canceled), the lock is automatically
216	returned.	364	returned.
217		365
		366	Locks are *not* recursive, locking from the same coro twice results in a
		367	deadlocked coro.
		368
218	Lock names should begin with a unique identifier (for example, find_map	369	Lock names should begin with a unique identifier (for example, cf::map::find
219	uses map_find and load_map uses map_load).	370	uses map_find and cf::map::load uses map_load).
220		371
221	=cut	372	=item $locked = cf::lock_active $string
222		373
223	our %LOCK;	374	Return true if the lock is currently active, i.e. somebody has locked it.
		375
		376	=cut
		377
		378	our $LOCKS = new Coro::SemaphoreSet;
224		379
225	sub lock_wait($) {	380	sub lock_wait($) {
226	my ($key) = @_;	381	$LOCKS->wait ($_[0]);
227
228	# wait for lock, if any
229	while ($LOCK{$key}) {
230	push @{ $LOCK{$key} }, $Coro::current;
231	Coro::schedule;
232	}
233	}	382	}
234		383
235	sub lock_acquire($) {	384	sub lock_acquire($) {
236	my ($key) = @_;	385	$LOCKS->guard ($_[0])
		386	}
237		387
238	# wait, to be sure we are not locked	388	sub lock_active($) {
239	lock_wait $key;	389	$LOCKS->count ($_[0]) < 1
		390	}
240		391
241	$LOCK{$key} = [];	392	sub freeze_mainloop {
		393	tick_inhibit_inc;
242		394
243	cf::guard {	395	&Guard::guard (\&tick_inhibit_dec);
244	# wake up all waiters, to be on the safe side	396	}
245	$_->ready for @{ delete $LOCK{$key} };	397
		398	=item cf::periodic $interval, $cb
		399
		400	Like EV::periodic, but randomly selects a starting point so that the actions
		401	get spread over timer.
		402
		403	=cut
		404
		405	sub periodic($$) {
		406	my ($interval, $cb) = @_;
		407
		408	my $start = rand List::Util::min 180, $interval;
		409
		410	EV::periodic $start, $interval, 0, $cb
		411	}
		412
		413	=item cf::get_slot $time[, $priority[, $name]]
		414
		415	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		416	This call blocks and returns only when you have at least C<$time> seconds
		417	of cpu time till the next tick. The slot is only valid till the next cede.
		418
		419	The optional C<$name> can be used to identify the job to run. It might be
		420	used for statistical purposes and should identify the same time-class.
		421
		422	Useful for short background jobs.
		423
		424	=cut
		425
		426	our @SLOT_QUEUE;
		427	our $SLOT_QUEUE;
		428
		429	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		430	$SLOT_QUEUE = Coro::async {
		431	$Coro::current->desc ("timeslot manager");
		432
		433	my $signal = new Coro::Signal;
		434
		435	while () {
		436	next_job:
		437	my $avail = cf::till_tick;
		438	if ($avail > 0.01) {
		439	for (0 .. $#SLOT_QUEUE) {
		440	if ($SLOT_QUEUE[$_][0] < $avail) {
		441	my $job = splice @SLOT_QUEUE, $_, 1, ();
		442	$job->[2]->send;
		443	Coro::cede;
		444	goto next_job;
		445	}
		446	}
		447	}
		448
		449	if (@SLOT_QUEUE) {
		450	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		451	push @cf::WAIT_FOR_TICK, $signal;
		452	$signal->wait;
		453	} else {
		454	Coro::schedule;
		455	}
246	}	456	}
		457	};
		458
		459	sub get_slot($;$$) {
		460	return if tick_inhibit || $Coro::current == $Coro::main;
		461
		462	my ($time, $pri, $name) = @_;
		463
		464	$time = $TICK * .6 if $time > $TICK * .6;
		465	my $sig = new Coro::Signal;
		466
		467	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		468	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		469	$SLOT_QUEUE->ready;
		470	$sig->wait;
247	}	471	}
248		472
249	=item cf::async { BLOCK }	473	=item cf::async { BLOCK }
250		474
251	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the	475	Currently the same as Coro::async_pool, meaning you cannot use
252	error instead of exiting the server in case of a problem.	476	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		477	thing you are allowed to do is call C<prio> on it.
253		478
254	=cut	479	=cut
255		480
256	sub async(&) {	481	BEGIN { *async = \&Coro::async_pool }
257	my ($cb) = @_;
258
259	Coro::async {
260	eval { $cb->() };
261	warn $@ if $@;
262	}
263	}
264		482
265	=item cf::sync_job { BLOCK }	483	=item cf::sync_job { BLOCK }
266		484
267	The design of crossfire+ requires that the main coro ($Coro::main) is	485	The design of Deliantra requires that the main coroutine ($Coro::main)
268	always able to handle events or runnable, as crossfire+ is only partly	486	is always able to handle events or runnable, as Deliantra is only
269	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	487	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		488	acceptable.
270		489
271	If it must be done, put the blocking parts into C<sync_job>. This will run	490	If it must be done, put the blocking parts into C<sync_job>. This will run
272	the given BLOCK in another coroutine while waiting for the result. The	491	the given BLOCK in another coroutine while waiting for the result. The
273	server will be frozen during this time, so the block should either finish	492	server will be frozen during this time, so the block should either finish
274	fast or be very important.	493	fast or be very important.
…		…
277		496
278	sub sync_job(&) {	497	sub sync_job(&) {
279	my ($job) = @_;	498	my ($job) = @_;
280		499
281	if ($Coro::current == $Coro::main) {	500	if ($Coro::current == $Coro::main) {
		501	my $time = EV::time;
		502
282	# this is the main coro, too bad, we have to block	503	# this is the main coro, too bad, we have to block
283	# till the operation succeeds, freezing the server :/	504	# till the operation succeeds, freezing the server :/
284		505
285	# TODO: use suspend/resume instead	506	LOG llevError, Carp::longmess "sync job";#d#
286	# (but this is cancel-safe)	507
287	local $FREEZE = 1;	508	my $freeze_guard = freeze_mainloop;
288		509
289	my $busy = 1;	510	my $busy = 1;
290	my @res;	511	my @res;
291		512
292	(Coro::async {	513	(async {
		514	$Coro::current->desc ("sync job coro");
293	@res = eval { $job->() };	515	@res = eval { $job->() };
294	warn $@ if $@;	516	warn $@ if $@;
295	undef $busy;	517	undef $busy;
296	})->prio (Coro::PRIO_MAX);	518	})->prio (Coro::PRIO_MAX);
297		519
298	while ($busy) {	520	while ($busy) {
		521	if (Coro::nready) {
299	Coro::cede_notself;	522	Coro::cede_notself;
300	Event::one_event unless Coro::nready;	523	} else {
		524	EV::loop EV::LOOP_ONESHOT;
301	}	525	}
		526	}
		527
		528	my $time = EV::time - $time;
		529
		530	$TICK_START += $time; # do not account sync jobs to server load
302		531
303	wantarray ? @res : $res[0]	532	wantarray ? @res : $res[0]
304	} else {	533	} else {
305	# we are in another coroutine, how wonderful, everything just works	534	# we are in another coroutine, how wonderful, everything just works
306		535
307	$job->()	536	$job->()
308	}	537	}
309	}	538	}
310		539
311	=item $coro = cf::coro { BLOCK }	540	=item $coro = cf::async_ext { BLOCK }
312		541
313	Creates and returns a new coro. This coro is automcatially being canceled	542	Like async, but this coro is automatically being canceled when the
314	when the extension calling this is being unloaded.	543	extension calling this is being unloaded.
315		544
316	=cut	545	=cut
317		546
318	sub coro(&) {	547	sub async_ext(&) {
319	my $cb = shift;	548	my $cb = shift;
320		549
321	my $coro = &cf::async ($cb);	550	my $coro = &Coro::async ($cb);
322		551
323	$coro->on_destroy (sub {	552	$coro->on_destroy (sub {
324	delete $EXT_CORO{$coro+0};	553	delete $EXT_CORO{$coro+0};
325	});	554	});
326	$EXT_CORO{$coro+0} = $coro;	555	$EXT_CORO{$coro+0} = $coro;
327		556
328	$coro	557	$coro
329	}	558	}
330		559
331	sub write_runtime {	560	=item fork_call { }, $args
332	my $runtime = cf::localdir . "/runtime";
333		561
334	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	562	Executes the given code block with the given arguments in a seperate
335	or return;	563	process, returning the results. Everything must be serialisable with
		564	Coro::Storable. May, of course, block. Note that the executed sub may
		565	never block itself or use any form of event handling.
336		566
337	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	567	=cut
338	(aio_write $fh, 0, (length $value), $value, 0) <= 0
339	and return;
340		568
341	aio_fsync $fh	569	sub fork_call(&@) {
342	and return;	570	my ($cb, @args) = @_;
343		571
344	close $fh	572	# we seemingly have to make a local copy of the whole thing,
345	or return;	573	# otherwise perl prematurely frees the stuff :/
		574	# TODO: investigate and fix (likely this will be rather laborious)
346		575
347	aio_rename "$runtime~", $runtime	576	my @res = Coro::Util::fork_eval {
348	and return;	577	reset_signals;
		578	&$cb
		579	}, @args;
349		580
		581	wantarray ? @res : $res[-1]
		582	}
		583
		584	=item $coin = coin_from_name $name
		585
		586	=cut
		587
		588	our %coin_alias = (
		589	"silver" => "silvercoin",
		590	"silvercoin" => "silvercoin",
		591	"silvercoins" => "silvercoin",
		592	"gold" => "goldcoin",
		593	"goldcoin" => "goldcoin",
		594	"goldcoins" => "goldcoin",
		595	"platinum" => "platinacoin",
		596	"platinumcoin" => "platinacoin",
		597	"platinumcoins" => "platinacoin",
		598	"platina" => "platinacoin",
		599	"platinacoin" => "platinacoin",
		600	"platinacoins" => "platinacoin",
		601	"royalty" => "royalty",
		602	"royalties" => "royalty",
		603	);
		604
		605	sub coin_from_name($) {
		606	$coin_alias{$_[0]}
		607	? cf::arch::find $coin_alias{$_[0]}
		608	: undef
		609	}
		610
		611	=item $value = cf::db_get $family => $key
		612
		613	Returns a single value from the environment database.
		614
		615	=item cf::db_put $family => $key => $value
		616
		617	Stores the given C<$value> in the family. It can currently store binary
		618	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		619
		620	=item $db = cf::db_table "name"
		621
		622	Create and/or open a new database table. The string must not be "db" and must be unique
		623	within each server.
		624
		625	=cut
		626
		627	sub db_table($) {
		628	my ($name) = @_;
		629	my $db = BDB::db_create $DB_ENV;
		630
		631	eval {
		632	$db->set_flags (BDB::CHKSUM);
		633
		634	utf8::encode $name;
		635	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		636	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		637	cf::cleanup "db_open(db): $!" if $!;
		638	};
		639	cf::cleanup "db_open(db): $@" if $@;
		640
		641	$db
		642	}
		643
		644	our $DB;
		645
		646	sub db_init {
		647	cf::sync_job {
		648	$DB ||= db_table "db";
		649	};
		650	}
		651
		652	sub db_get($$) {
		653	my $key = "$_[0]/$_[1]";
		654
		655	cf::sync_job {
		656	BDB::db_get $DB, undef, $key, my $data;
		657
		658	$! ? ()
		659	: $data
350	1	660	}
		661	}
		662
		663	sub db_put($$$) {
		664	BDB::dbreq_pri 4;
		665	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		666	}
		667
		668	=item cf::cache $id => [$paths...], $processversion => $process
		669
		670	Generic caching function that returns the value of the resource $id,
		671	caching and regenerating as required.
		672
		673	This function can block.
		674
		675	=cut
		676
		677	sub cache {
		678	my ($id, $src, $processversion, $process) = @_;
		679
		680	my $meta =
		681	join "\x00",
		682	$processversion,
		683	map {
		684	aio_stat $_
		685	and Carp::croak "$_: $!";
		686
		687	($_, (stat _)[7,9])
		688	} @$src;
		689
		690	my $dbmeta = db_get cache => "$id/meta";
		691	if ($dbmeta ne $meta) {
		692	# changed, we may need to process
		693
		694	my @data;
		695	my $md5;
		696
		697	for (0 .. $#$src) {
		698	0 <= aio_load $src->[$_], $data[$_]
		699	or Carp::croak "$src->[$_]: $!";
		700	}
		701
		702	# if processing is expensive, check
		703	# checksum first
		704	if (1) {
		705	$md5 =
		706	join "\x00",
		707	$processversion,
		708	map {
		709	cf::cede_to_tick;
		710	($src->[$_], Digest::MD5::md5_hex $data[$_])
		711	} 0.. $#$src;
		712
		713
		714	my $dbmd5 = db_get cache => "$id/md5";
		715	if ($dbmd5 eq $md5) {
		716	db_put cache => "$id/meta", $meta;
		717
		718	return db_get cache => "$id/data";
		719	}
		720	}
		721
		722	my $t1 = Time::HiRes::time;
		723	my $data = $process->(\@data);
		724	my $t2 = Time::HiRes::time;
		725
		726	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		727
		728	db_put cache => "$id/data", $data;
		729	db_put cache => "$id/md5" , $md5;
		730	db_put cache => "$id/meta", $meta;
		731
		732	return $data;
		733	}
		734
		735	db_get cache => "$id/data"
		736	}
		737
		738	=item cf::datalog type => key => value, ...
		739
		740	Log a datalog packet of the given type with the given key-value pairs.
		741
		742	=cut
		743
		744	sub datalog($@) {
		745	my ($type, %kv) = @_;
		746	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
351	}	747	}
352		748
353	=back	749	=back
354		750
355	=cut	751	=cut
356		752
357	#############################################################################	753	#############################################################################
358		754
359	package cf::path;
360
361	sub new {
362	my ($class, $path, $base) = @_;
363
364	$path = $path->as_string if ref $path;
365
366	my $self = bless { }, $class;
367
368	# {... are special paths that are not touched
369	# ?xxx/... are special absolute paths
370	# ?random/... random maps
371	# /! non-realised random map exit
372	# /... normal maps
373	# ~/... per-player maps without a specific player (DO NOT USE)
374	# ~user/... per-player map of a specific user
375
376	if ($path =~ /^{/) {
377	# fine as it is
378	} elsif ($path =~ s{^\?random/}{}) {
379	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
380	$self->{random} = cf::from_json $data;
381	} else {
382	if ($path =~ s{^~([^/]+)?}{}) {
383	$self->{user_rel} = 1;
384
385	if (defined $1) {
386	$self->{user} = $1;
387	} elsif ($base =~ m{^~([^/]+)/}) {
388	$self->{user} = $1;
389	} else {
390	warn "cannot resolve user-relative path without user <$path,$base>\n";
391	}
392	} elsif ($path =~ /^\//) {
393	# already absolute
394	} else {
395	$base =~ s{[^/]+/?$}{};
396	return $class->new ("$base/$path");
397	}
398
399	for ($path) {
400	redo if s{/\.?/}{/};
401	redo if s{/[^/]+/\.\./}{/};
402	}
403	}
404
405	$self->{path} = $path;
406
407	$self
408	}
409
410	# the name / primary key / in-game path
411	sub as_string {
412	my ($self) = @_;
413
414	$self->{user_rel} ? "~$self->{user}$self->{path}"
415	: $self->{random} ? "?random/$self->{path}"
416	: $self->{path}
417	}
418
419	# the displayed name, this is a one way mapping
420	sub visible_name {
421	my ($self) = @_;
422
423	# if (my $rmp = $self->{random}) {
424	# # todo: be more intelligent about this
425	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
426	# } else {
427	$self->as_string
428	# }
429	}
430
431	# escape the /'s in the path
432	sub _escaped_path {
433	# ∕ is U+2215
434	(my $path = $_[0]{path}) =~ s/\//∕/g;
435	$path
436	}
437
438	# the original (read-only) location
439	sub load_path {
440	my ($self) = @_;
441
442	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
443	}
444
445	# the temporary/swap location
446	sub save_path {
447	my ($self) = @_;
448
449	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
450	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
451	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
452	}
453
454	# the unique path, might be eq to save_path
455	sub uniq_path {
456	my ($self) = @_;
457
458	$self->{user_rel} || $self->{random}
459	? undef
460	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
461	}
462
463	# return random map parameters, or undef
464	sub random_map_params {
465	my ($self) = @_;
466
467	$self->{random}
468	}
469
470	# this is somewhat ugly, but style maps do need special treatment
471	sub is_style_map {
472	$_[0]{path} =~ m{^/styles/}
473	}
474
475	package cf;
476
477	#############################################################################
478
479	=head2 ATTACHABLE OBJECTS	755	=head2 ATTACHABLE OBJECTS
480		756
481	Many objects in crossfire are so-called attachable objects. That means you can	757	Many objects in deliantra are so-called attachable objects. That means you can
482	attach callbacks/event handlers (a collection of which is called an "attachment")	758	attach callbacks/event handlers (a collection of which is called an "attachment")
483	to it. All such attachable objects support the following methods.	759	to it. All such attachable objects support the following methods.
484		760
485	In the following description, CLASS can be any of C<global>, C<object>	761	In the following description, CLASS can be any of C<global>, C<object>
486	C<player>, C<client> or C<map> (i.e. the attachable objects in	762	C<player>, C<client> or C<map> (i.e. the attachable objects in
487	crossfire+).	763	Deliantra).
488		764
489	=over 4	765	=over 4
490		766
491	=item $attachable->attach ($attachment, key => $value...)	767	=item $attachable->attach ($attachment, key => $value...)
492		768
…		…
536	=item cf::CLASS::attachment $name, ...	812	=item cf::CLASS::attachment $name, ...
537		813
538	Register an attachment by C<$name> through which attachable objects of the	814	Register an attachment by C<$name> through which attachable objects of the
539	given CLASS can refer to this attachment.	815	given CLASS can refer to this attachment.
540		816
541	Some classes such as crossfire maps and objects can specify attachments	817	Some classes such as deliantra maps and objects can specify attachments
542	that are attached at load/instantiate time, thus the need for a name.	818	that are attached at load/instantiate time, thus the need for a name.
543		819
544	These calls expect any number of the following handler/hook descriptions:	820	These calls expect any number of the following handler/hook descriptions:
545		821
546	=over 4	822	=over 4
…		…
606	our @CB_TYPE = (); # registry for type (cf-object class) based events	882	our @CB_TYPE = (); # registry for type (cf-object class) based events
607	our @CB_MAP = ();	883	our @CB_MAP = ();
608		884
609	my %attachment;	885	my %attachment;
610		886
		887	sub cf::attachable::thawer_merge {
		888	# simply override everything except _meta
		889	local $_[0]{_meta};
		890	%{$_[0]} = %{$_[1]};
		891	}
		892
611	sub _attach_cb($$$$) {	893	sub _attach_cb($$$$) {
612	my ($registry, $event, $prio, $cb) = @_;	894	my ($registry, $event, $prio, $cb) = @_;
613		895
614	use sort 'stable';	896	use sort 'stable';
615		897
…		…
649	$registry = $CB_TYPE[$object_type] ||= [];	931	$registry = $CB_TYPE[$object_type] ||= [];
650		932
651	} elsif ($type eq "subtype") {	933	} elsif ($type eq "subtype") {
652	defined $object_type or Carp::croak "subtype specified without type";	934	defined $object_type or Carp::croak "subtype specified without type";
653	my $object_subtype = shift @arg;	935	my $object_subtype = shift @arg;
654	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	936	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
655		937
656	} elsif ($type eq "package") {	938	} elsif ($type eq "package") {
657	my $pkg = shift @arg;	939	my $pkg = shift @arg;
658		940
659	while (my ($name, $id) = each %cb_id) {	941	while (my ($name, $id) = each %cb_id) {
…		…
688	_attach $registry, $klass, @attach;	970	_attach $registry, $klass, @attach;
689	}	971	}
690		972
691	$obj->{$name} = \%arg;	973	$obj->{$name} = \%arg;
692	} else {	974	} else {
693	warn "object uses attachment '$name' that is not available, postponing.\n";	975	warn "object uses attachment '$name' which is not available, postponing.\n";
694	}	976	}
695		977
696	$obj->{_attachment}{$name} = undef;	978	$obj->{_attachment}{$name} = undef;
697	}	979	}
698		980
…		…
700	if (ref $_[0]) {	982	if (ref $_[0]) {
701	_object_attach @_;	983	_object_attach @_;
702	} else {	984	} else {
703	_attach shift->_attach_registry, @_;	985	_attach shift->_attach_registry, @_;
704	}	986	}
		987	_recalc_want;
705	};	988	};
706		989
707	# all those should be optimised	990	# all those should be optimised
708	sub cf::attachable::detach {	991	sub cf::attachable::detach {
709	my ($obj, $name) = @_;	992	my ($obj, $name) = @_;
…		…
712	delete $obj->{_attachment}{$name};	995	delete $obj->{_attachment}{$name};
713	reattach ($obj);	996	reattach ($obj);
714	} else {	997	} else {
715	Carp::croak "cannot, currently, detach class attachments";	998	Carp::croak "cannot, currently, detach class attachments";
716	}	999	}
		1000	_recalc_want;
717	};	1001	};
718		1002
719	sub cf::attachable::attached {	1003	sub cf::attachable::attached {
720	my ($obj, $name) = @_;	1004	my ($obj, $name) = @_;
721		1005
…		…
736	";	1020	";
737	die if $@;	1021	die if $@;
738	}	1022	}
739		1023
740	our $override;	1024	our $override;
741	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1025	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
742		1026
743	sub override {	1027	sub override {
744	$override = 1;	1028	$override = 1;
745	@invoke_results = ();	1029	@INVOKE_RESULTS = (@_);
746	}	1030	}
747		1031
748	sub do_invoke {	1032	sub do_invoke {
749	my $event = shift;	1033	my $event = shift;
750	my $callbacks = shift;	1034	my $callbacks = shift;
751		1035
752	@invoke_results = ();	1036	@INVOKE_RESULTS = ();
753		1037
754	local $override;	1038	local $override;
755		1039
756	for (@$callbacks) {	1040	for (@$callbacks) {
757	eval { &{$_->[1]} };	1041	eval { &{$_->[1]} };
…		…
766	}	1050	}
767		1051
768	0	1052	0
769	}	1053	}
770		1054
771	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1055	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
772		1056
773	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1057	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
774		1058
775	Generate an object-specific event with the given arguments.	1059	Generate an object-specific event with the given arguments.
776		1060
777	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1061	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
778	removed in future versions), and there is no public API to access override	1062	removed in future versions), and there is no public API to access override
779	results (if you must, access C<@cf::invoke_results> directly).	1063	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
780		1064
781	=back	1065	=back
782		1066
783	=cut	1067	=cut
784		1068
785	#############################################################################	1069	#############################################################################
786	# object support	1070	# object support
		1071
		1072	sub _object_equal($$);
		1073	sub _object_equal($$) {
		1074	my ($a, $b) = @_;
		1075
		1076	return 0 unless (ref $a) eq (ref $b);
		1077
		1078	if ("HASH" eq ref $a) {
		1079	my @ka = keys %$a;
		1080	my @kb = keys %$b;
		1081
		1082	return 0 if @ka != @kb;
		1083
		1084	for (0 .. $#ka) {
		1085	return 0 unless $ka[$_] eq $kb[$_];
		1086	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1087	}
		1088
		1089	} elsif ("ARRAY" eq ref $a) {
		1090
		1091	return 0 if @$a != @$b;
		1092
		1093	for (0 .. $#$a) {
		1094	return 0 unless _object_equal $a->[$_], $b->[$_];
		1095	}
		1096
		1097	} elsif ($a ne $b) {
		1098	return 0;
		1099	}
		1100
		1101	1
		1102	}
		1103
		1104	our $SLOW_MERGES;#d#
		1105	sub _can_merge {
		1106	my ($ob1, $ob2) = @_;
		1107
		1108	++$SLOW_MERGES;#d#
		1109
		1110	# we do the slow way here
		1111	return _object_equal $ob1, $ob2
		1112	}
787		1113
788	sub reattach {	1114	sub reattach {
789	# basically do the same as instantiate, without calling instantiate	1115	# basically do the same as instantiate, without calling instantiate
790	my ($obj) = @_;	1116	my ($obj) = @_;
		1117
		1118	# no longer needed after getting rid of delete_package?
		1119	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
791		1120
792	my $registry = $obj->registry;	1121	my $registry = $obj->registry;
793		1122
794	@$registry = ();	1123	@$registry = ();
795		1124
…		…
810	cf::attachable->attach (	1139	cf::attachable->attach (
811	prio => -1000000,	1140	prio => -1000000,
812	on_instantiate => sub {	1141	on_instantiate => sub {
813	my ($obj, $data) = @_;	1142	my ($obj, $data) = @_;
814		1143
815	$data = from_json $data;	1144	$data = decode_json $data;
816		1145
817	for (@$data) {	1146	for (@$data) {
818	my ($name, $args) = @$_;	1147	my ($name, $args) = @$_;
819		1148
820	$obj->attach ($name, %{$args || {} });	1149	$obj->attach ($name, %{$args || {} });
…		…
836	sub object_freezer_save {	1165	sub object_freezer_save {
837	my ($filename, $rdata, $objs) = @_;	1166	my ($filename, $rdata, $objs) = @_;
838		1167
839	sync_job {	1168	sync_job {
840	if (length $$rdata) {	1169	if (length $$rdata) {
		1170	utf8::decode (my $decname = $filename);
841	warn sprintf "saving %s (%d,%d)\n",	1171	warn sprintf "saving %s (%d,%d)\n",
842	$filename, length $$rdata, scalar @$objs;	1172	$decname, length $$rdata, scalar @$objs;
843		1173
844	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1174	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
845	chmod SAVE_MODE, $fh;	1175	aio_chmod $fh, SAVE_MODE;
846	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1176	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1177	if ($cf::USE_FSYNC) {
		1178	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
847	aio_fsync $fh;	1179	aio_fsync $fh;
		1180	}
848	close $fh;	1181	aio_close $fh;
849		1182
850	if (@$objs) {	1183	if (@$objs) {
851	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1184	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
852	chmod SAVE_MODE, $fh;	1185	aio_chmod $fh, SAVE_MODE;
853	my $data = Storable::nfreeze { version => 1, objs => $objs };	1186	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
854	aio_write $fh, 0, (length $data), $data, 0;	1187	aio_write $fh, 0, (length $data), $data, 0;
		1188	if ($cf::USE_FSYNC) {
		1189	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
855	aio_fsync $fh;	1190	aio_fsync $fh;
		1191	}
856	close $fh;	1192	aio_close $fh;
857	aio_rename "$filename.pst~", "$filename.pst";	1193	aio_rename "$filename.pst~", "$filename.pst";
858	}	1194	}
859	} else {	1195	} else {
860	aio_unlink "$filename.pst";	1196	aio_unlink "$filename.pst";
861	}	1197	}
862		1198
863	aio_rename "$filename~", $filename;	1199	aio_rename "$filename~", $filename;
		1200
		1201	$filename =~ s%/[^/]+$%%;
		1202	aio_pathsync $filename if $cf::USE_FSYNC;
864	} else {	1203	} else {
865	warn "FATAL: $filename~: $!\n";	1204	warn "unable to save objects: $filename~: $!\n";
866	}	1205	}
867	} else {	1206	} else {
868	aio_unlink $filename;	1207	aio_unlink $filename;
869	aio_unlink "$filename.pst";	1208	aio_unlink "$filename.pst";
870	}	1209	}
871	}	1210	};
872	}	1211	}
873		1212
874	sub object_freezer_as_string {	1213	sub object_freezer_as_string {
875	my ($rdata, $objs) = @_;	1214	my ($rdata, $objs) = @_;
876		1215
…		…
888	or return;	1227	or return;
889		1228
890	unless (aio_stat "$filename.pst") {	1229	unless (aio_stat "$filename.pst") {
891	(aio_load "$filename.pst", $av) >= 0	1230	(aio_load "$filename.pst", $av) >= 0
892	or return;	1231	or return;
		1232
893	$av = eval { (Storable::thaw $av)->{objs} };	1233	my $st = eval { Coro::Storable::thaw $av };
		1234	$av = $st->{objs};
894	}	1235	}
895		1236
		1237	utf8::decode (my $decname = $filename);
896	warn sprintf "loading %s (%d)\n",	1238	warn sprintf "loading %s (%d,%d)\n",
897	$filename, length $data, scalar @{$av || []};#d#	1239	$decname, length $data, scalar @{$av || []};
		1240
898	return ($data, $av);	1241	($data, $av)
899	}	1242	}
		1243
		1244	=head2 COMMAND CALLBACKS
		1245
		1246	=over 4
		1247
		1248	=cut
900		1249
901	#############################################################################	1250	#############################################################################
902	# command handling &c	1251	# command handling &c
903		1252
904	=item cf::register_command $name => \&callback($ob,$args);	1253	=item cf::register_command $name => \&callback($ob,$args);
…		…
917	push @{ $COMMAND{$name} }, [$caller, $cb];	1266	push @{ $COMMAND{$name} }, [$caller, $cb];
918	}	1267	}
919		1268
920	=item cf::register_extcmd $name => \&callback($pl,$packet);	1269	=item cf::register_extcmd $name => \&callback($pl,$packet);
921		1270
922	Register a callbackf ro execution when the client sends an extcmd packet.	1271	Register a callback for execution when the client sends an (synchronous)
		1272	extcmd packet. Ext commands will be processed in the order they are
		1273	received by the server, like other user commands. The first argument is
		1274	the logged-in player. Ext commands can only be processed after a player
		1275	has logged in successfully.
923		1276
924	If the callback returns something, it is sent back as if reply was being	1277	If the callback returns something, it is sent back as if reply was being
925	called.	1278	called.
926		1279
		1280	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1281
		1282	Register a callback for execution when the client sends an (asynchronous)
		1283	exticmd packet. Exti commands are processed by the server as soon as they
		1284	are received, i.e. out of order w.r.t. other commands. The first argument
		1285	is a client socket. Exti commands can be received anytime, even before
		1286	log-in.
		1287
		1288	If the callback returns something, it is sent back as if reply was being
		1289	called.
		1290
927	=cut	1291	=cut
928		1292
929	sub register_extcmd {	1293	sub register_extcmd {
930	my ($name, $cb) = @_;	1294	my ($name, $cb) = @_;
931		1295
932	my $caller = caller;
933	#warn "registering extcmd '$name' to '$caller'";
934
935	$EXTCMD{$name} = [$cb, $caller];	1296	$EXTCMD{$name} = $cb;
936	}	1297	}
		1298
		1299	sub register_exticmd {
		1300	my ($name, $cb) = @_;
		1301
		1302	$EXTICMD{$name} = $cb;
		1303	}
		1304
		1305	use File::Glob ();
937		1306
938	cf::player->attach (	1307	cf::player->attach (
939	on_command => sub {	1308	on_command => sub {
940	my ($pl, $name, $params) = @_;	1309	my ($pl, $name, $params) = @_;
941		1310
…		…
949	cf::override;	1318	cf::override;
950	},	1319	},
951	on_extcmd => sub {	1320	on_extcmd => sub {
952	my ($pl, $buf) = @_;	1321	my ($pl, $buf) = @_;
953		1322
954	my $msg = eval { from_json $buf };	1323	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
955		1324
956	if (ref $msg) {	1325	if (ref $msg) {
		1326	my ($type, $reply, @payload) =
		1327	"ARRAY" eq ref $msg
		1328	? @$msg
		1329	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1330
		1331	my @reply;
		1332
957	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1333	if (my $cb = $EXTCMD{$type}) {
958	if (my %reply = $cb->[0]->($pl, $msg)) {	1334	@reply = $cb->($pl, @payload);
959	$pl->ext_reply ($msg->{msgid}, %reply);
960	}
961	}	1335	}
		1336
		1337	$pl->ext_reply ($reply, @reply)
		1338	if $reply;
		1339
962	} else {	1340	} else {
963	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1341	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
964	}	1342	}
965		1343
966	cf::override;	1344	cf::override;
967	},	1345	},
968	);	1346	);
969		1347
970	sub register {	1348	# "readahead" all extensions
971	my ($base, $pkg) = @_;	1349	sub cache_extensions {
		1350	my $grp = IO::AIO::aio_group;
972		1351
973	#TODO	1352	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
974	}	1353	for (grep /\.ext$/, @{$_[0]}) {
		1354	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
		1355	}
		1356	};
975		1357
		1358	$grp
		1359	}
		1360
976	sub load_extension {	1361	sub load_extensions {
		1362	cf::sync_job {
		1363	my %todo;
		1364
		1365	for my $path (<$LIBDIR/*.ext>) {
		1366	next unless -r $path;
		1367
		1368	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1369	my $base = $1;
		1370	my $pkg = $1;
		1371	$pkg =~ s/[^[:word:]]/_/g;
		1372	$pkg = "ext::$pkg";
		1373
		1374	open my $fh, "<:utf8", $path
		1375	or die "$path: $!";
		1376
		1377	my $source = do { local $/; <$fh> };
		1378
		1379	my %ext = (
		1380	path => $path,
		1381	base => $base,
		1382	pkg => $pkg,
		1383	);
		1384
		1385	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1386	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1387
		1388	$ext{source} =
		1389	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1390	. "#line 1 \"$path\"\n{\n"
		1391	. $source
		1392	. "\n};\n1";
		1393
		1394	$todo{$base} = \%ext;
		1395	}
		1396
		1397	my %done;
		1398	while (%todo) {
		1399	my $progress;
		1400
		1401	while (my ($k, $v) = each %todo) {
		1402	for (split /,\s*/, $v->{meta}{depends}) {
		1403	goto skip
		1404	unless exists $done{$_};
		1405	}
		1406
		1407	warn "... loading '$k' into '$v->{pkg}'\n";
		1408
		1409	unless (eval $v->{source}) {
		1410	my $msg = $@ ? "$v->{path}: $@\n"
		1411	: "$v->{base}: extension inactive.\n";
		1412
		1413	if (exists $v->{meta}{mandatory}) {
		1414	warn $msg;
		1415	cf::cleanup "mandatory extension failed to load, exiting.";
		1416	}
		1417
		1418	warn $msg;
		1419	}
		1420
		1421	$done{$k} = delete $todo{$k};
		1422	push @EXTS, $v->{pkg};
		1423	$progress = 1;
		1424	}
		1425
		1426	skip:
		1427	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1428	unless $progress;
		1429	}
		1430	};
		1431	}
		1432
		1433	#############################################################################
		1434
		1435	=back
		1436
		1437	=head2 CORE EXTENSIONS
		1438
		1439	Functions and methods that extend core deliantra objects.
		1440
		1441	=cut
		1442
		1443	package cf::player;
		1444
		1445	use Coro::AIO;
		1446
		1447	=head3 cf::player
		1448
		1449	=over 4
		1450
		1451	=item cf::player::num_playing
		1452
		1453	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1454
		1455	=cut
		1456
		1457	sub num_playing {
		1458	scalar grep
		1459	$_->ob->map
		1460	&& !$_->hidden
		1461	&& !$_->ob->flag (cf::FLAG_WIZ),
		1462	cf::player::list
		1463	}
		1464
		1465	=item cf::player::find $login
		1466
		1467	Returns the given player object, loading it if necessary (might block).
		1468
		1469	=cut
		1470
		1471	sub playerdir($) {
		1472	"$PLAYERDIR/"
		1473	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1474	}
		1475
		1476	sub path($) {
		1477	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1478
		1479	(playerdir $login) . "/playerdata"
		1480	}
		1481
		1482	sub find_active($) {
		1483	$cf::PLAYER{$_[0]}
		1484	and $cf::PLAYER{$_[0]}->active
		1485	and $cf::PLAYER{$_[0]}
		1486	}
		1487
		1488	sub exists($) {
		1489	my ($login) = @_;
		1490
		1491	$cf::PLAYER{$login}
		1492	or !aio_stat path $login
		1493	}
		1494
		1495	sub find($) {
		1496	return $cf::PLAYER{$_[0]} || do {
		1497	my $login = $_[0];
		1498
		1499	my $guard = cf::lock_acquire "user_find:$login";
		1500
		1501	$cf::PLAYER{$_[0]} || do {
		1502	# rename old playerfiles to new ones
		1503	#TODO: remove when no longer required
		1504	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1505	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1506	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1507	aio_unlink +(playerdir $login) . "/$login.pl";
		1508
		1509	my $f = new_from_file cf::object::thawer path $login
		1510	or return;
		1511
		1512	my $pl = cf::player::load_pl $f
		1513	or return;
		1514
		1515	local $cf::PLAYER_LOADING{$login} = $pl;
		1516	$f->resolve_delayed_derefs;
		1517	$cf::PLAYER{$login} = $pl
		1518	}
		1519	}
		1520	}
		1521
		1522	sub save($) {
		1523	my ($pl) = @_;
		1524
		1525	return if $pl->{deny_save};
		1526
		1527	my $path = path $pl;
		1528	my $guard = cf::lock_acquire "user_save:$path";
		1529
		1530	return if $pl->{deny_save};
		1531
		1532	aio_mkdir playerdir $pl, 0770;
		1533	$pl->{last_save} = $cf::RUNTIME;
		1534
		1535	cf::get_slot 0.01;
		1536
		1537	$pl->save_pl ($path);
		1538	cf::cede_to_tick;
		1539	}
		1540
		1541	sub new($) {
		1542	my ($login) = @_;
		1543
		1544	my $self = create;
		1545
		1546	$self->ob->name ($login);
		1547	$self->{deny_save} = 1;
		1548
		1549	$cf::PLAYER{$login} = $self;
		1550
		1551	$self
		1552	}
		1553
		1554	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1555
		1556	=cut
		1557
		1558	sub send_msg {
		1559	my $ns = shift->ns
		1560	or return;
		1561	$ns->send_msg (@_);
		1562	}
		1563
		1564	=item $pl->quit_character
		1565
		1566	Nukes the player without looking back. If logged in, the connection will
		1567	be destroyed. May block for a long time.
		1568
		1569	=cut
		1570
		1571	sub quit_character {
		1572	my ($pl) = @_;
		1573
		1574	my $name = $pl->ob->name;
		1575
		1576	$pl->{deny_save} = 1;
		1577	$pl->password ("*"); # this should lock out the player until we have nuked the dir
		1578
		1579	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1580	$pl->deactivate;
		1581	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1582	$pl->ob->check_score;
		1583	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1584	$pl->ns->destroy if $pl->ns;
		1585
		1586	my $path = playerdir $pl;
		1587	my $temp = "$path~$cf::RUNTIME~deleting~";
		1588	aio_rename $path, $temp;
		1589	delete $cf::PLAYER{$pl->ob->name};
		1590	$pl->destroy;
		1591
		1592	my $prefix = qr<^~\Q$name\E/>;
		1593
		1594	# nuke player maps
		1595	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1596
		1597	IO::AIO::aio_rmtree $temp;
		1598	}
		1599
		1600	=item $pl->kick
		1601
		1602	Kicks a player out of the game. This destroys the connection.
		1603
		1604	=cut
		1605
		1606	sub kick {
		1607	my ($pl, $kicker) = @_;
		1608
		1609	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1610	$pl->killer ("kicked");
		1611	$pl->ns->destroy;
		1612	}
		1613
		1614	=item cf::player::list_logins
		1615
		1616	Returns am arrayref of all valid playernames in the system, can take a
		1617	while and may block, so not sync_job-capable, ever.
		1618
		1619	=cut
		1620
		1621	sub list_logins {
		1622	my $dirs = aio_readdir $PLAYERDIR
		1623	or return [];
		1624
		1625	my @logins;
		1626
		1627	for my $login (@$dirs) {
		1628	my $path = path $login;
		1629
		1630	# a .pst is a dead give-away for a valid player
		1631	# if no pst file found, open and chekc for blocked users
		1632	if (aio_stat "$path.pst") {
		1633	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1634	aio_read $fh, 0, 512, my $buf, 0 or next;
		1635	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1636	}
		1637
		1638	utf8::decode $login;
		1639	push @logins, $login;
		1640	}
		1641
		1642	\@logins
		1643	}
		1644
		1645	=item $player->maps
		1646
		1647	Returns an arrayref of map paths that are private for this
		1648	player. May block.
		1649
		1650	=cut
		1651
		1652	sub maps($) {
		1653	my ($pl) = @_;
		1654
		1655	$pl = ref $pl ? $pl->ob->name : $pl;
		1656
		1657	my $files = aio_readdir playerdir $pl
		1658	or return;
		1659
		1660	my @paths;
		1661
		1662	for (@$files) {
		1663	utf8::decode $_;
		1664	next if /\.(?:pl|pst)$/;
		1665	next unless /^$PATH_SEP/o;
		1666
		1667	push @paths, cf::map::normalise "~$pl/$_";
		1668	}
		1669
		1670	\@paths
		1671	}
		1672
		1673	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1674
		1675	Expand deliantra pod fragments into protocol xml.
		1676
		1677	=item $player->ext_reply ($msgid, @msg)
		1678
		1679	Sends an ext reply to the player.
		1680
		1681	=cut
		1682
		1683	sub ext_reply($$@) {
		1684	my ($self, $id, @msg) = @_;
		1685
		1686	$self->ns->ext_reply ($id, @msg)
		1687	}
		1688
		1689	=item $player->ext_msg ($type, @msg)
		1690
		1691	Sends an ext event to the client.
		1692
		1693	=cut
		1694
		1695	sub ext_msg($$@) {
		1696	my ($self, $type, @msg) = @_;
		1697
		1698	$self->ns->ext_msg ($type, @msg);
		1699	}
		1700
		1701	=head3 cf::region
		1702
		1703	=over 4
		1704
		1705	=cut
		1706
		1707	package cf::region;
		1708
		1709	=item cf::region::find_by_path $path
		1710
		1711	Tries to decuce the likely region for a map knowing only its path.
		1712
		1713	=cut
		1714
		1715	sub find_by_path($) {
977	my ($path) = @_;	1716	my ($path) = @_;
978		1717
979	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1718	my ($match, $specificity);
980	my $base = $1;
981	my $pkg = $1;
982	$pkg =~ s/[^[:word:]]/_/g;
983	$pkg = "ext::$pkg";
984		1719
985	warn "loading '$path' into '$pkg'\n";	1720	for my $region (list) {
986		1721	if ($region->{match} && $path =~ $region->{match}) {
987	open my $fh, "<:utf8", $path	1722	($match, $specificity) = ($region, $region->specificity)
988	or die "$path: $!";	1723	if $region->specificity > $specificity;
989		1724	}
990	my $source =
991	"package $pkg; use strict; use utf8;\n"
992	. "#line 1 \"$path\"\n{\n"
993	. (do { local $/; <$fh> })
994	. "\n};\n1";
995
996	eval $source
997	or die $@ ? "$path: $@\n"
998	: "extension disabled.\n";
999
1000	push @exts, $pkg;
1001	$ext_pkg{$base} = $pkg;
1002
1003	# no strict 'refs';
1004	# @{"$pkg\::ISA"} = ext::;
1005
1006	register $base, $pkg;
1007	}
1008
1009	sub unload_extension {
1010	my ($pkg) = @_;
1011
1012	warn "removing extension $pkg\n";
1013
1014	# remove hooks
1015	#TODO
1016	# for my $idx (0 .. $#PLUGIN_EVENT) {
1017	# delete $hook[$idx]{$pkg};
1018	# }	1725	}
1019		1726
1020	# remove commands	1727	$match
1021	for my $name (keys %COMMAND) {
1022	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1023
1024	if (@cb) {
1025	$COMMAND{$name} = \@cb;
1026	} else {
1027	delete $COMMAND{$name};
1028	}
1029	}
1030
1031	# remove extcmds
1032	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1033	delete $EXTCMD{$name};
1034	}
1035
1036	if (my $cb = $pkg->can ("unload")) {
1037	eval {
1038	$cb->($pkg);
1039	1
1040	} or warn "$pkg unloaded, but with errors: $@";
1041	}
1042
1043	Symbol::delete_package $pkg;
1044	}
1045
1046	sub load_extensions {
1047	for my $ext (<$LIBDIR/*.ext>) {
1048	next unless -r $ext;
1049	eval {
1050	load_extension $ext;
1051	1
1052	} or warn "$ext not loaded: $@";
1053	}
1054	}
1055
1056	#############################################################################
1057	# load/save/clean perl data associated with a map
1058
1059	*cf::mapsupport::on_clean = sub {
1060	my ($map) = @_;
1061
1062	my $path = $map->tmpname;
1063	defined $path or return;
1064
1065	unlink "$path.pst";
1066	};
1067
1068	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1069
1070	#############################################################################
1071	# load/save perl data associated with player->ob objects
1072
1073	sub all_objects(@) {
1074	@_, map all_objects ($_->inv), @_
1075	}
1076
1077	# TODO: compatibility cruft, remove when no longer needed
1078	cf::player->attach (
1079	on_load => sub {
1080	my ($pl, $path) = @_;
1081
1082	for my $o (all_objects $pl->ob) {
1083	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1084	$o->set_ob_key_value ("_perl_data");
1085
1086	%$o = %{ Storable::thaw pack "H*", $value };
1087	}
1088	}
1089	},
1090	);
1091
1092	#############################################################################
1093
1094	=head2 CORE EXTENSIONS
1095
1096	Functions and methods that extend core crossfire objects.
1097
1098	=head3 cf::player
1099
1100	=over 4
1101
1102	=item cf::player::exists $login
1103
1104	Returns true when the given account exists.
1105
1106	=cut
1107
1108	sub cf::player::exists($) {
1109	cf::player::find $_[0]
1110	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1111	}
1112
1113	=item $player->ext_reply ($msgid, $msgtype, %msg)
1114
1115	Sends an ext reply to the player.
1116
1117	=cut
1118
1119	sub cf::player::ext_reply($$$%) {
1120	my ($self, $id, %msg) = @_;
1121
1122	$msg{msgid} = $id;
1123
1124	$self->send ("ext " . to_json \%msg);
1125	}	1728	}
1126		1729
1127	=back	1730	=back
1128
1129		1731
1130	=head3 cf::map	1732	=head3 cf::map
1131		1733
1132	=over 4	1734	=over 4
1133		1735
…		…
1136	package cf::map;	1738	package cf::map;
1137		1739
1138	use Fcntl;	1740	use Fcntl;
1139	use Coro::AIO;	1741	use Coro::AIO;
1140		1742
		1743	use overload
		1744	'""' => \&as_string,
		1745	fallback => 1;
		1746
1141	our $MAX_RESET = 7200;	1747	our $MAX_RESET = 3600;
1142	our $DEFAULT_RESET = 3600;	1748	our $DEFAULT_RESET = 3000;
1143		1749
1144	sub generate_random_map {	1750	sub generate_random_map {
1145	my ($path, $rmp) = @_;	1751	my ($self, $rmp) = @_;
		1752
		1753	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1146		1754
1147	# mit "rum" bekleckern, nicht	1755	# mit "rum" bekleckern, nicht
1148	cf::map::_create_random_map	1756	$self->_create_random_map (
1149	$path,
1150	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1757	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1151	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1758	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1152	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1759	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1153	$rmp->{exit_on_final_map},	1760	$rmp->{exit_on_final_map},
1154	$rmp->{xsize}, $rmp->{ysize},	1761	$rmp->{xsize}, $rmp->{ysize},
1155	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1762	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1156	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1763	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1157	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1764	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1158	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1765	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1159	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1766	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1160	(cf::region::find $rmp->{region})	1767	(cf::region::find $rmp->{region}), $rmp->{custom}
		1768	)
1161	}	1769	}
1162		1770
1163	# and all this just because we cannot iterate over	1771	=item cf::map->register ($regex, $prio)
1164	# all maps in C++...
1165	sub change_all_map_light {
1166	my ($change) = @_;
1167		1772
1168	$_->change_map_light ($change)	1773	Register a handler for the map path matching the given regex at the
1169	for grep $_->outdoor, values %cf::MAP;	1774	givne priority (higher is better, built-in handlers have priority 0, the
1170	}	1775	default).
1171		1776
1172	sub try_load_header($) {	1777	=cut
		1778
		1779	sub register {
		1780	my (undef, $regex, $prio) = @_;
		1781	my $pkg = caller;
		1782
		1783	no strict;
		1784	push @{"$pkg\::ISA"}, __PACKAGE__;
		1785
		1786	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1787	}
		1788
		1789	# also paths starting with '/'
		1790	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1791
		1792	sub thawer_merge {
		1793	my ($self, $merge) = @_;
		1794
		1795	# we have to keep some variables in memory intact
		1796	local $self->{path};
		1797	local $self->{load_path};
		1798
		1799	$self->SUPER::thawer_merge ($merge);
		1800	}
		1801
		1802	sub normalise {
1173	my ($path) = @_;	1803	my ($path, $base) = @_;
		1804
		1805	$path = "$path"; # make sure its a string
		1806
		1807	$path =~ s/\.map$//;
		1808
		1809	# map plan:
		1810	#
		1811	# /! non-realised random map exit (special hack!)
		1812	# {... are special paths that are not being touched
		1813	# ?xxx/... are special absolute paths
		1814	# ?random/... random maps
		1815	# /... normal maps
		1816	# ~user/... per-player map of a specific user
		1817
		1818	$path =~ s/$PATH_SEP/\//go;
		1819
		1820	# treat it as relative path if it starts with
		1821	# something that looks reasonable
		1822	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1823	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1824
		1825	$base =~ s{[^/]+/?$}{};
		1826	$path = "$base/$path";
		1827	}
		1828
		1829	for ($path) {
		1830	redo if s{//}{/};
		1831	redo if s{/\.?/}{/};
		1832	redo if s{/[^/]+/\.\./}{/};
		1833	}
		1834
		1835	$path
		1836	}
		1837
		1838	sub new_from_path {
		1839	my (undef, $path, $base) = @_;
		1840
		1841	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1842
		1843	$path = normalise $path, $base;
		1844
		1845	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1846	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1847	my $self = bless cf::map::new, $pkg;
		1848	$self->{path} = $path; $self->path ($path);
		1849	$self->init; # pass $1 etc.
		1850	return $self;
		1851	}
		1852	}
		1853
		1854	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1855	()
		1856	}
		1857
		1858	sub init {
		1859	my ($self) = @_;
		1860
		1861	$self
		1862	}
		1863
		1864	sub as_string {
		1865	my ($self) = @_;
		1866
		1867	"$self->{path}"
		1868	}
		1869
		1870	# the displayed name, this is a one way mapping
		1871	sub visible_name {
		1872	&as_string
		1873	}
		1874
		1875	# the original (read-only) location
		1876	sub load_path {
		1877	my ($self) = @_;
		1878
		1879	"$MAPDIR/$self->{path}.map"
		1880	}
		1881
		1882	# the temporary/swap location
		1883	sub save_path {
		1884	my ($self) = @_;
		1885
		1886	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1887	"$TMPDIR/$path.map"
		1888	}
		1889
		1890	# the unique path, undef == no special unique path
		1891	sub uniq_path {
		1892	my ($self) = @_;
		1893
		1894	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1895	"$UNIQUEDIR/$path"
		1896	}
		1897
		1898	sub decay_objects {
		1899	my ($self) = @_;
		1900
		1901	return if $self->{deny_reset};
		1902
		1903	$self->do_decay_objects;
		1904	}
		1905
		1906	sub unlink_save {
		1907	my ($self) = @_;
		1908
		1909	utf8::encode (my $save = $self->save_path);
		1910	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1911	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1912	}
		1913
		1914	sub load_header_from($) {
		1915	my ($self, $path) = @_;
1174		1916
1175	utf8::encode $path;	1917	utf8::encode $path;
1176	aio_open $path, O_RDONLY, 0	1918	my $f = new_from_file cf::object::thawer $path
1177	or return;	1919	or return;
1178		1920
1179	my $map = cf::map::new	1921	$self->_load_header ($f)
1180	or return;	1922	or return;
1181		1923
1182	$map->load_header ($path)	1924	local $MAP_LOADING{$self->{path}} = $self;
		1925	$f->resolve_delayed_derefs;
		1926
		1927	$self->{load_path} = $path;
		1928
		1929	1
		1930	}
		1931
		1932	sub load_header_orig {
		1933	my ($self) = @_;
		1934
		1935	$self->load_header_from ($self->load_path)
		1936	}
		1937
		1938	sub load_header_temp {
		1939	my ($self) = @_;
		1940
		1941	$self->load_header_from ($self->save_path)
		1942	}
		1943
		1944	sub prepare_temp {
		1945	my ($self) = @_;
		1946
		1947	$self->last_access ((delete $self->{last_access})
		1948	|| $cf::RUNTIME); #d#
		1949	# safety
		1950	$self->{instantiate_time} = $cf::RUNTIME
		1951	if $self->{instantiate_time} > $cf::RUNTIME;
		1952	}
		1953
		1954	sub prepare_orig {
		1955	my ($self) = @_;
		1956
		1957	$self->{load_original} = 1;
		1958	$self->{instantiate_time} = $cf::RUNTIME;
		1959	$self->last_access ($cf::RUNTIME);
		1960	$self->instantiate;
		1961	}
		1962
		1963	sub load_header {
		1964	my ($self) = @_;
		1965
		1966	if ($self->load_header_temp) {
		1967	$self->prepare_temp;
		1968	} else {
		1969	$self->load_header_orig
1183	or return;	1970	or return;
		1971	$self->prepare_orig;
		1972	}
1184		1973
1185	$map->{load_path} = $path;	1974	$self->{deny_reset} = 1
		1975	if $self->no_reset;
1186		1976
1187	$map	1977	$self->default_region (cf::region::find_by_path $self->{path})
1188	}	1978	unless $self->default_region;
1189		1979
		1980	1
		1981	}
		1982
1190	sub find_map;	1983	sub find;
1191	sub find_map {	1984	sub find {
1192	my ($path, $origin) = @_;	1985	my ($path, $origin) = @_;
1193		1986
1194	#warn "find_map<$path,$origin>\n";#d#
1195
1196	$path = new cf::path $path, $origin && $origin->path;	1987	$path = normalise $path, $origin && $origin->path;
1197	my $key = $path->as_string;
1198		1988
1199	cf::lock_wait "map_find:$key";	1989	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1200
1201	$cf::MAP{$key} || do {
1202	my $guard = cf::lock_acquire "map_find:$key";	1990	my $guard2 = cf::lock_acquire "map_find:$path";
1203		1991
1204	# do it the slow way	1992	$cf::MAP{$path} || do {
1205	my $map = try_load_header $path->save_path;	1993	my $map = new_from_path cf::map $path
1206
1207	if ($map) {
1208	$map->last_access ((delete $map->{last_access})
1209	|| $cf::RUNTIME); #d#
1210	# safety
1211	$map->{instantiate_time} = $cf::RUNTIME
1212	if $map->{instantiate_time} > $cf::RUNTIME;
1213	} else {
1214	if (my $rmp = $path->random_map_params) {
1215	$map = generate_random_map $key, $rmp;
1216	} else {
1217	$map = try_load_header $path->load_path;
1218	}
1219
1220	$map or return;	1994	or return;
1221		1995
1222	$map->{load_original} = 1;
1223	$map->{instantiate_time} = $cf::RUNTIME;
1224	$map->last_access ($cf::RUNTIME);
1225	$map->instantiate;
1226
1227	# per-player maps become, after loading, normal maps
1228	$map->per_player (0) if $path->{user_rel};
1229	}
1230
1231	$map->path ($key);
1232	$map->{path} = $path;
1233	$map->{last_save} = $cf::RUNTIME;	1996	$map->{last_save} = $cf::RUNTIME;
1234		1997
1235	if ($map->should_reset) {	1998	$map->load_header
		1999	or return;
		2000
		2001	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2002	# doing this can freeze the server in a sync job, obviously
		2003	#$cf::WAIT_FOR_TICK->wait;
		2004	undef $guard2;
		2005	undef $guard1;
1236	$map->reset;	2006	$map->reset;
1237	undef $guard;	2007	return find $path;
1238	$map = find_map $path
1239	or return;
1240	}	2008	}
1241		2009
1242	$cf::MAP{$key} = $map	2010	$cf::MAP{$path} = $map
1243	}	2011	}
1244	}	2012	}
		2013
		2014	sub pre_load { }
		2015	#sub post_load { } # XS
1245		2016
1246	sub load {	2017	sub load {
1247	my ($self) = @_;	2018	my ($self) = @_;
1248		2019
		2020	local $self->{deny_reset} = 1; # loading can take a long time
		2021
1249	my $path = $self->{path};	2022	my $path = $self->{path};
		2023
		2024	{
1250	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2025	my $guard = cf::lock_acquire "map_data:$path";
1251		2026
		2027	return unless $self->valid;
1252	return if $self->in_memory != cf::MAP_SWAPPED;	2028	return unless $self->in_memory == cf::MAP_SWAPPED;
1253		2029
1254	$self->in_memory (cf::MAP_LOADING);	2030	$self->in_memory (cf::MAP_LOADING);
1255		2031
1256	$self->alloc;	2032	$self->alloc;
1257	$self->load_objects ($self->{load_path}, 1)	2033
		2034	$self->pre_load;
		2035	cf::cede_to_tick;
		2036
		2037	my $f = new_from_file cf::object::thawer $self->{load_path};
		2038	$f->skip_block;
		2039	$self->_load_objects ($f)
1258	or return;	2040	or return;
1259		2041
1260	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2042	$self->post_load_original
1261	if delete $self->{load_original};	2043	if delete $self->{load_original};
1262		2044
1263	if (my $uniq = $path->uniq_path) {	2045	if (my $uniq = $self->uniq_path) {
1264	utf8::encode $uniq;	2046	utf8::encode $uniq;
1265	if (aio_open $uniq, O_RDONLY, 0) {	2047	unless (aio_stat $uniq) {
		2048	if (my $f = new_from_file cf::object::thawer $uniq) {
1266	$self->clear_unique_items;	2049	$self->clear_unique_items;
1267	$self->load_objects ($uniq, 0);	2050	$self->_load_objects ($f);
		2051	$f->resolve_delayed_derefs;
		2052	}
1268	}	2053	}
1269	}	2054	}
1270		2055
		2056	$f->resolve_delayed_derefs;
		2057
		2058	cf::cede_to_tick;
1271	# now do the right thing for maps	2059	# now do the right thing for maps
1272	$self->link_multipart_objects;	2060	$self->link_multipart_objects;
1273
1274	if ($self->{path}->is_style_map) {
1275	$self->{deny_save} = 1;
1276	$self->{deny_reset} = 1;
1277	} else {
1278	$self->fix_auto_apply;
1279	$self->decay_objects;
1280	$self->update_buttons;
1281	$self->set_darkness_map;
1282	$self->difficulty ($self->estimate_difficulty)	2061	$self->difficulty ($self->estimate_difficulty)
1283	unless $self->difficulty;	2062	unless $self->difficulty;
		2063	cf::cede_to_tick;
		2064
		2065	unless ($self->{deny_activate}) {
		2066	$self->decay_objects;
		2067	$self->fix_auto_apply;
		2068	$self->update_buttons;
		2069	cf::cede_to_tick;
1284	$self->activate;	2070	$self->activate;
1285	}	2071	}
1286		2072
		2073	$self->{last_save} = $cf::RUNTIME;
		2074	$self->last_access ($cf::RUNTIME);
		2075
1287	$self->in_memory (cf::MAP_IN_MEMORY);	2076	$self->in_memory (cf::MAP_ACTIVE);
1288	}	2077	}
1289		2078
1290	sub load_map_sync {	2079	$self->post_load;
		2080	}
		2081
		2082	sub customise_for {
		2083	my ($self, $ob) = @_;
		2084
		2085	return find "~" . $ob->name . "/" . $self->{path}
		2086	if $self->per_player;
		2087
		2088	# return find "?party/" . $ob->name . "/" . $self->{path}
		2089	# if $self->per_party;
		2090
		2091	$self
		2092	}
		2093
		2094	# find and load all maps in the 3x3 area around a map
		2095	sub load_neighbours {
		2096	my ($map) = @_;
		2097
		2098	my @neigh; # diagonal neighbours
		2099
		2100	for (0 .. 3) {
		2101	my $neigh = $map->tile_path ($_)
		2102	or next;
		2103	$neigh = find $neigh, $map
		2104	or next;
		2105	$neigh->load;
		2106
		2107	push @neigh,
		2108	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2109	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2110	}
		2111
		2112	for (grep defined $_->[0], @neigh) {
		2113	my ($path, $origin) = @$_;
		2114	my $neigh = find $path, $origin
		2115	or next;
		2116	$neigh->load;
		2117	}
		2118	}
		2119
		2120	sub find_sync {
1291	my ($path, $origin) = @_;	2121	my ($path, $origin) = @_;
1292		2122
1293	#warn "load_map_sync<$path, $origin>\n";#d#	2123	cf::sync_job { find $path, $origin }
		2124	}
1294		2125
1295	cf::sync_job {	2126	sub do_load_sync {
1296	my $map = cf::map::find_map $path, $origin	2127	my ($map) = @_;
1297	or return;	2128
1298	$map->load;	2129	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
1299	$map	2130	if $Coro::current == $Coro::main;
		2131
		2132	cf::sync_job { $map->load };
		2133	}
		2134
		2135	our %MAP_PREFETCH;
		2136	our $MAP_PREFETCHER = undef;
		2137
		2138	sub find_async {
		2139	my ($path, $origin, $load) = @_;
		2140
		2141	$path = normalise $path, $origin && $origin->{path};
		2142
		2143	if (my $map = $cf::MAP{$path}) {
		2144	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2145	}
		2146
		2147	$MAP_PREFETCH{$path} |= $load;
		2148
		2149	$MAP_PREFETCHER ||= cf::async {
		2150	$Coro::current->{desc} = "map prefetcher";
		2151
		2152	while (%MAP_PREFETCH) {
		2153	while (my ($k, $v) = each %MAP_PREFETCH) {
		2154	if (my $map = find $k) {
		2155	$map->load if $v;
		2156	}
		2157
		2158	delete $MAP_PREFETCH{$k};
		2159	}
		2160	}
		2161	undef $MAP_PREFETCHER;
1300	}	2162	};
		2163	$MAP_PREFETCHER->prio (6);
		2164
		2165	()
1301	}	2166	}
1302		2167
1303	sub save {	2168	sub save {
1304	my ($self) = @_;	2169	my ($self) = @_;
1305		2170
		2171	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2172
1306	$self->{last_save} = $cf::RUNTIME;	2173	$self->{last_save} = $cf::RUNTIME;
1307		2174
1308	return unless $self->dirty;	2175	return unless $self->dirty;
1309		2176
1310	my $save = $self->{path}->save_path; utf8::encode $save;	2177	my $save = $self->save_path; utf8::encode $save;
1311	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2178	my $uniq = $self->uniq_path; utf8::encode $uniq;
1312		2179
1313	$self->{load_path} = $save;	2180	$self->{load_path} = $save;
1314		2181
1315	return if $self->{deny_save};	2182	return if $self->{deny_save};
1316		2183
1317	local $self->{last_access} = $self->last_access;#d#	2184	local $self->{last_access} = $self->last_access;#d#
1318		2185
		2186	cf::async {
		2187	$Coro::current->{desc} = "map player save";
		2188	$_->contr->save for $self->players;
		2189	};
		2190
		2191	cf::get_slot 0.02;
		2192
1319	if ($uniq) {	2193	if ($uniq) {
1320	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2194	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1321	$self->save_objects ($uniq, cf::IO_UNIQUES);	2195	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1322	} else {	2196	} else {
1323	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2197	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1324	}	2198	}
1325	}	2199	}
1326		2200
1327	sub swap_out {	2201	sub swap_out {
1328	my ($self) = @_;	2202	my ($self) = @_;
1329		2203
1330	# save first because save cedes	2204	# save first because save cedes
1331	$self->save;	2205	$self->save;
1332		2206
		2207	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2208
1333	return if $self->players;	2209	return if $self->players;
1334	return if $self->in_memory != cf::MAP_IN_MEMORY;	2210	return if $self->in_memory != cf::MAP_ACTIVE;
1335	return if $self->{deny_save};	2211	return if $self->{deny_save};
1336		2212
		2213	$self->in_memory (cf::MAP_SWAPPED);
		2214
		2215	$self->deactivate;
		2216	$_->clear_links_to ($self) for values %cf::MAP;
1337	$self->clear;	2217	$self->clear;
1338	$self->in_memory (cf::MAP_SWAPPED);
1339	}	2218	}
1340		2219
1341	sub reset_at {	2220	sub reset_at {
1342	my ($self) = @_;	2221	my ($self) = @_;
1343		2222
1344	# TODO: safety, remove and allow resettable per-player maps	2223	# TODO: safety, remove and allow resettable per-player maps
1345	return 1e99 if $self->{path}{user_rel};
1346	return 1e99 if $self->{deny_reset};	2224	return 1e99 if $self->{deny_reset};
1347		2225
1348	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2226	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1349	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2227	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1350		2228
…		…
1355	my ($self) = @_;	2233	my ($self) = @_;
1356		2234
1357	$self->reset_at <= $cf::RUNTIME	2235	$self->reset_at <= $cf::RUNTIME
1358	}	2236	}
1359		2237
1360	sub unlink_save {
1361	my ($self) = @_;
1362
1363	utf8::encode (my $save = $self->{path}->save_path);
1364	aioreq_pri 3; IO::AIO::aio_unlink $save;
1365	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1366	}
1367
1368	sub rename {
1369	my ($self, $new_path) = @_;
1370
1371	$self->unlink_save;
1372
1373	delete $cf::MAP{$self->path};
1374	$self->{path} = new cf::path $new_path;
1375	$self->path ($self->{path}->as_string);
1376	$cf::MAP{$self->path} = $self;
1377
1378	$self->save;
1379	}
1380
1381	sub reset {	2238	sub reset {
1382	my ($self) = @_;	2239	my ($self) = @_;
1383		2240
		2241	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2242
1384	return if $self->players;	2243	return if $self->players;
1385	return if $self->{path}{user_rel};#d#
1386		2244
1387	warn "resetting map ", $self->path;#d#	2245	warn "resetting map ", $self->path, "\n";
		2246
		2247	$self->in_memory (cf::MAP_SWAPPED);
		2248
		2249	# need to save uniques path
		2250	unless ($self->{deny_save}) {
		2251	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2252
		2253	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2254	if $uniq;
		2255	}
1388		2256
1389	delete $cf::MAP{$self->path};	2257	delete $cf::MAP{$self->path};
1390		2258
		2259	$self->deactivate;
1391	$_->clear_links_to ($self) for values %cf::MAP;	2260	$_->clear_links_to ($self) for values %cf::MAP;
		2261	$self->clear;
1392		2262
1393	$self->unlink_save;	2263	$self->unlink_save;
1394	$self->destroy;	2264	$self->destroy;
1395	}	2265	}
1396		2266
1397	my $nuke_counter = "aaaa";	2267	my $nuke_counter = "aaaa";
1398		2268
1399	sub nuke {	2269	sub nuke {
1400	my ($self) = @_;	2270	my ($self) = @_;
1401		2271
		2272	{
		2273	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2274
		2275	delete $cf::MAP{$self->path};
		2276
		2277	$self->unlink_save;
		2278
		2279	bless $self, "cf::map";
		2280	delete $self->{deny_reset};
1402	$self->{deny_save} = 1;	2281	$self->{deny_save} = 1;
1403	$self->reset_timeout (1);	2282	$self->reset_timeout (1);
1404	$self->rename ("{nuke}/" . ($nuke_counter++));	2283	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2284
		2285	$cf::MAP{$self->path} = $self;
		2286	}
		2287
1405	$self->reset; # polite request, might not happen	2288	$self->reset; # polite request, might not happen
1406	}	2289	}
1407		2290
1408	sub customise_for {	2291	=item $maps = cf::map::tmp_maps
1409	my ($map, $ob) = @_;
1410		2292
1411	if ($map->per_player) {	2293	Returns an arrayref with all map paths of currently instantiated and saved
1412	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2294	maps. May block.
		2295
		2296	=cut
		2297
		2298	sub tmp_maps() {
1413	}	2299	[
1414		2300	map {
1415	$map	2301	utf8::decode $_;
		2302	/\.map$/
		2303	? normalise $_
		2304	: ()
		2305	} @{ aio_readdir $TMPDIR or [] }
		2306	]
1416	}	2307	}
1417		2308
1418	sub emergency_save {	2309	=item $maps = cf::map::random_maps
1419	local $cf::FREEZE = 1;
1420		2310
1421	warn "enter emergency map save\n";	2311	Returns an arrayref with all map paths of currently instantiated and saved
		2312	random maps. May block.
1422		2313
1423	cf::sync_job {	2314	=cut
1424	warn "begin emergency map save\n";	2315
1425	$_->save for values %cf::MAP;	2316	sub random_maps() {
		2317	[
		2318	map {
		2319	utf8::decode $_;
		2320	/\.map$/
		2321	? normalise "?random/$_"
		2322	: ()
		2323	} @{ aio_readdir $RANDOMDIR or [] }
		2324	]
		2325	}
		2326
		2327	=item cf::map::unique_maps
		2328
		2329	Returns an arrayref of paths of all shared maps that have
		2330	instantiated unique items. May block.
		2331
		2332	=cut
		2333
		2334	sub unique_maps() {
		2335	[
		2336	map {
		2337	utf8::decode $_;
		2338	s/\.map$//; # TODO future compatibility hack
		2339	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2340	? ()
		2341	: normalise $_
		2342	} @{ aio_readdir $UNIQUEDIR or [] }
		2343	]
		2344	}
		2345
		2346	=item cf::map::static_maps
		2347
		2348	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2349	file in the shared directory excluding F</styles> and F</editor>). May
		2350	block.
		2351
		2352	=cut
		2353
		2354	sub static_maps() {
		2355	my @dirs = "";
		2356	my @maps;
		2357
		2358	while (@dirs) {
		2359	my $dir = shift @dirs;
		2360
		2361	next if $dir eq "/styles" || $dir eq "/editor";
		2362
		2363	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2364	or return;
		2365
		2366	for (@$files) {
		2367	s/\.map$// or next;
		2368	utf8::decode $_;
		2369	push @maps, "$dir/$_";
		2370	}
		2371
		2372	push @dirs, map "$dir/$_", @$dirs;
1426	};	2373	}
1427		2374
1428	warn "end emergency map save\n";	2375	\@maps
		2376	}
		2377
		2378	=back
		2379
		2380	=head3 cf::object
		2381
		2382	=cut
		2383
		2384	package cf::object;
		2385
		2386	=over 4
		2387
		2388	=item $ob->inv_recursive
		2389
		2390	Returns the inventory of the object I<and> their inventories, recursively,
		2391	but I<not> the object itself.
		2392
		2393	=cut
		2394
		2395	sub inv_recursive_;
		2396	sub inv_recursive_ {
		2397	map { $_, inv_recursive_ $_->inv } @_
		2398	}
		2399
		2400	sub inv_recursive {
		2401	inv_recursive_ inv $_[0]
		2402	}
		2403
		2404	=item $ref = $ob->ref
		2405
		2406	Creates and returns a persistent reference to an object that can be stored as a string.
		2407
		2408	=item $ob = cf::object::deref ($refstring)
		2409
		2410	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2411	even if the object actually exists. May block.
		2412
		2413	=cut
		2414
		2415	sub deref {
		2416	my ($ref) = @_;
		2417
		2418	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2419	my ($uuid, $name) = ($1, $2);
		2420	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2421	or return;
		2422	$pl->ob->uuid eq $uuid
		2423	or return;
		2424
		2425	$pl->ob
		2426	} else {
		2427	warn "$ref: cannot resolve object reference\n";
		2428	undef
		2429	}
1429	}	2430	}
1430		2431
1431	package cf;	2432	package cf;
1432		2433
1433	=back	2434	=back
1434
1435		2435
1436	=head3 cf::object::player	2436	=head3 cf::object::player
1437		2437
1438	=over 4	2438	=over 4
1439		2439
…		…
1442	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2442	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1443	can be C<undef>. Does the right thing when the player is currently in a	2443	can be C<undef>. Does the right thing when the player is currently in a
1444	dialogue with the given NPC character.	2444	dialogue with the given NPC character.
1445		2445
1446	=cut	2446	=cut
		2447
		2448	our $SAY_CHANNEL = {
		2449	id => "say",
		2450	title => "Map",
		2451	reply => "say ",
		2452	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2453	};
		2454
		2455	our $CHAT_CHANNEL = {
		2456	id => "chat",
		2457	title => "Chat",
		2458	reply => "chat ",
		2459	tooltip => "Player chat and shouts, global to the server.",
		2460	};
1447		2461
1448	# rough implementation of a future "reply" method that works	2462	# rough implementation of a future "reply" method that works
1449	# with dialog boxes.	2463	# with dialog boxes.
1450	#TODO: the first argument must go, split into a $npc->reply_to ( method	2464	#TODO: the first argument must go, split into a $npc->reply_to ( method
1451	sub cf::object::player::reply($$$;$) {	2465	sub cf::object::player::reply($$$;$) {
…		…
1453		2467
1454	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2468	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1455		2469
1456	if ($self->{record_replies}) {	2470	if ($self->{record_replies}) {
1457	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2471	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2472
1458	} else {	2473	} else {
		2474	my $pl = $self->contr;
		2475
		2476	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2477	my $dialog = $pl->{npc_dialog};
		2478	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2479
		2480	} else {
1459	$msg = $npc->name . " says: $msg" if $npc;	2481	$msg = $npc->name . " says: $msg" if $npc;
1460	$self->message ($msg, $flags);	2482	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2483	}
1461	}	2484	}
		2485	}
		2486
		2487	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2488
		2489	=cut
		2490
		2491	sub cf::object::send_msg {
		2492	my $pl = shift->contr
		2493	or return;
		2494	$pl->send_msg (@_);
1462	}	2495	}
1463		2496
1464	=item $player_object->may ("access")	2497	=item $player_object->may ("access")
1465		2498
1466	Returns wether the given player is authorized to access resource "access"	2499	Returns wether the given player is authorized to access resource "access"
…		…
1479		2512
1480	=item $player_object->enter_link	2513	=item $player_object->enter_link
1481		2514
1482	Freezes the player and moves him/her to a special map (C<{link}>).	2515	Freezes the player and moves him/her to a special map (C<{link}>).
1483		2516
1484	The player should be reaosnably safe there for short amounts of time. You	2517	The player should be reasonably safe there for short amounts of time (e.g.
1485	I<MUST> call C<leave_link> as soon as possible, though.	2518	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2519	though, as the palyer cannot control the character while it is on the link
		2520	map.
		2521
		2522	Will never block.
1486		2523
1487	=item $player_object->leave_link ($map, $x, $y)	2524	=item $player_object->leave_link ($map, $x, $y)
1488		2525
1489	Moves the player out of the specila link map onto the given map. If the	2526	Moves the player out of the special C<{link}> map onto the specified
1490	map is not valid (or omitted), the player will be moved back to the	2527	map. If the map is not valid (or omitted), the player will be moved back
1491	location he/she was before the call to C<enter_link>, or, if that fails,	2528	to the location he/she was before the call to C<enter_link>, or, if that
1492	to the emergency map position.	2529	fails, to the emergency map position.
1493		2530
1494	Might block.	2531	Might block.
1495		2532
1496	=cut	2533	=cut
		2534
		2535	sub link_map {
		2536	unless ($LINK_MAP) {
		2537	$LINK_MAP = cf::map::find "{link}"
		2538	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2539	$LINK_MAP->load;
		2540	}
		2541
		2542	$LINK_MAP
		2543	}
1497		2544
1498	sub cf::object::player::enter_link {	2545	sub cf::object::player::enter_link {
1499	my ($self) = @_;	2546	my ($self) = @_;
1500		2547
1501	$self->deactivate_recursive;	2548	$self->deactivate_recursive;
1502		2549
1503	return if $self->map == $LINK_MAP;	2550	return if UNIVERSAL::isa $self->map, "ext::map_link";
1504		2551
1505	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2552	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1506	if $self->map;	2553	if $self->map && $self->map->{path} ne "{link}";
1507		2554
1508	$self->enter_map ($LINK_MAP, 20, 20);	2555	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1509	}	2556	}
1510		2557
1511	sub cf::object::player::leave_link {	2558	sub cf::object::player::leave_link {
1512	my ($self, $map, $x, $y) = @_;	2559	my ($self, $map, $x, $y) = @_;
		2560
		2561	return unless $self->contr->active;
1513		2562
1514	my $link_pos = delete $self->{_link_pos};	2563	my $link_pos = delete $self->{_link_pos};
1515		2564
1516	unless ($map) {	2565	unless ($map) {
1517	# restore original map position	2566	# restore original map position
1518	($map, $x, $y) = @{ $link_pos || [] };	2567	($map, $x, $y) = @{ $link_pos || [] };
1519	$map = cf::map::find_map $map;	2568	$map = cf::map::find $map;
1520		2569
1521	unless ($map) {	2570	unless ($map) {
1522	($map, $x, $y) = @$EMERGENCY_POSITION;	2571	($map, $x, $y) = @$EMERGENCY_POSITION;
1523	$map = cf::map::find_map $map	2572	$map = cf::map::find $map
1524	or die "FATAL: cannot load emergency map\n";	2573	or die "FATAL: cannot load emergency map\n";
1525	}	2574	}
1526	}	2575	}
1527		2576
1528	($x, $y) = (-1, -1)	2577	($x, $y) = (-1, -1)
1529	unless (defined $x) && (defined $y);	2578	unless (defined $x) && (defined $y);
1530		2579
1531	# use -1 or undef as default coordinates, not 0, 0	2580	# use -1 or undef as default coordinates, not 0, 0
1532	($x, $y) = ($map->enter_x, $map->enter_y)	2581	($x, $y) = ($map->enter_x, $map->enter_y)
1533	if $x <=0 && $y <= 0;	2582	if $x <= 0 && $y <= 0;
1534		2583
1535	$map->load;	2584	$map->load;
		2585	$map->load_neighbours;
1536		2586
		2587	return unless $self->contr->active;
		2588
		2589	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2590	$self->enter_map ($map, $x, $y);
		2591
		2592	# only activate afterwards, to support waiting in hooks
1537	$self->activate_recursive;	2593	$self->activate_recursive;
1538	$self->enter_map ($map, $x, $y);
1539	}	2594	}
1540		2595
1541	cf::player->attach (	2596	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1542	on_logout => sub {
1543	my ($pl) = @_;
1544		2597
1545	# abort map switching before logout	2598	Moves the player to the given map-path and coordinates by first freezing
1546	if ($pl->ob->{_link_pos}) {	2599	her, loading and preparing them map, calling the provided $check callback
1547	cf::sync_job {	2600	that has to return the map if sucecssful, and then unfreezes the player on
1548	$pl->ob->leave_link	2601	the new (success) or old (failed) map position. In either case, $done will
1549	};	2602	be called at the end of this process.
1550	}
1551	},
1552	on_login => sub {
1553	my ($pl) = @_;
1554		2603
1555	# try to abort aborted map switching on player login :)	2604	Note that $check will be called with a potentially non-loaded map, so if
1556	# should happen only on crashes	2605	it needs a loaded map it has to call C<< ->load >>.
1557	if ($pl->ob->{_link_pos}) {
1558	$pl->ob->enter_link;
1559	cf::async {
1560	# we need this sleep as the login has a concurrent enter_exit running
1561	# and this sleep increases chances of the player not ending up in scorn
1562	Coro::Timer::sleep 1;
1563	$pl->ob->leave_link;
1564	};
1565	}
1566	},
1567	);
1568		2606
1569	=item $player_object->goto_map ($path, $x, $y)
1570
1571	=cut	2607	=cut
1572		2608
		2609	our $GOTOGEN;
		2610
1573	sub cf::object::player::goto_map {	2611	sub cf::object::player::goto {
1574	my ($self, $path, $x, $y) = @_;	2612	my ($self, $path, $x, $y, $check, $done) = @_;
		2613
		2614	# do generation counting so two concurrent goto's will be executed in-order
		2615	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1575		2616
1576	$self->enter_link;	2617	$self->enter_link;
1577		2618
1578	(cf::async {	2619	(async {
1579	$path = new cf::path $path;	2620	$Coro::current->{desc} = "player::goto $path $x $y";
1580		2621
1581	my $map = cf::map::find_map $path->as_string;	2622	# *tag paths override both path and x|y
		2623	if ($path =~ /^\*(.*)$/) {
		2624	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2625	my $ob = $obs[rand @obs];
		2626
		2627	# see if we actually can go there
		2628	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2629	$ob = $obs[rand @obs];
		2630	} else {
		2631	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2632	}
		2633	# else put us there anyways for now #d#
		2634
		2635	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2636	} else {
		2637	($path, $x, $y) = (undef, undef, undef);
		2638	}
		2639	}
		2640
		2641	my $map = eval {
		2642	my $map = defined $path ? cf::map::find $path : undef;
		2643
		2644	if ($map) {
1582	$map = $map->customise_for ($self) if $map;	2645	$map = $map->customise_for ($self);
1583		2646	$map = $check->($map) if $check && $map;
1584	# warn "entering ", $map->path, " at ($x, $y)\n"	2647	} else {
1585	# if $map;
1586
1587	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2648	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2649	}
1588		2650
		2651	$map
		2652	};
		2653
		2654	if ($@) {
		2655	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2656	LOG llevError | logBacktrace, Carp::longmess $@;
		2657	}
		2658
		2659	if ($gen == $self->{_goto_generation}) {
		2660	delete $self->{_goto_generation};
1589	$self->leave_link ($map, $x, $y);	2661	$self->leave_link ($map, $x, $y);
		2662	}
		2663
		2664	$done->() if $done;
1590	})->prio (1);	2665	})->prio (1);
1591	}	2666	}
1592		2667
1593	=item $player_object->enter_exit ($exit_object)	2668	=item $player_object->enter_exit ($exit_object)
1594		2669
…		…
1596		2671
1597	sub parse_random_map_params {	2672	sub parse_random_map_params {
1598	my ($spec) = @_;	2673	my ($spec) = @_;
1599		2674
1600	my $rmp = { # defaults	2675	my $rmp = { # defaults
1601	xsize => 10,	2676	xsize => (cf::rndm 15, 40),
1602	ysize => 10,	2677	ysize => (cf::rndm 15, 40),
		2678	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2679	#layout => string,
1603	};	2680	};
1604		2681
1605	for (split /\n/, $spec) {	2682	for (split /\n/, $spec) {
1606	my ($k, $v) = split /\s+/, $_, 2;	2683	my ($k, $v) = split /\s+/, $_, 2;
1607		2684
…		…
1619	# that depends on the exit object	2696	# that depends on the exit object
1620		2697
1621	my $rmp = parse_random_map_params $exit->msg;	2698	my $rmp = parse_random_map_params $exit->msg;
1622		2699
1623	if ($exit->map) {	2700	if ($exit->map) {
1624	$rmp->{region} = $exit->map->region_name;	2701	$rmp->{region} = $exit->region->name;
1625	$rmp->{origin_map} = $exit->map->path;	2702	$rmp->{origin_map} = $exit->map->path;
1626	$rmp->{origin_x} = $exit->x;	2703	$rmp->{origin_x} = $exit->x;
1627	$rmp->{origin_y} = $exit->y;	2704	$rmp->{origin_y} = $exit->y;
		2705
		2706	$exit->map->touch;
1628	}	2707	}
1629		2708
1630	$rmp->{random_seed} ||= $exit->random_seed;	2709	$rmp->{random_seed} ||= $exit->random_seed;
1631		2710
1632	my $data = cf::to_json $rmp;	2711	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1633	my $md5 = Digest::MD5::md5_hex $data;	2712	my $md5 = Digest::MD5::md5_hex $data;
		2713	my $meta = "$RANDOMDIR/$md5.meta";
1634		2714
1635	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2715	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1636	aio_write $fh, 0, (length $data), $data, 0;	2716	aio_write $fh, 0, (length $data), $data, 0;
		2717	undef $fh;
		2718	aio_rename "$meta~", $meta;
1637		2719
		2720	my $slaying = "?random/$md5";
		2721
		2722	if ($exit->valid) {
1638	$exit->slaying ("?random/$md5");	2723	$exit->slaying ("?random/$md5");
1639	$exit->msg (undef);	2724	$exit->msg (undef);
		2725	}
1640	}	2726	}
1641	}	2727	}
1642		2728
1643	sub cf::object::player::enter_exit {	2729	sub cf::object::player::enter_exit {
1644	my ($self, $exit) = @_;	2730	my ($self, $exit) = @_;
1645		2731
1646	return unless $self->type == cf::PLAYER;	2732	return unless $self->type == cf::PLAYER;
1647		2733
1648	$self->enter_link;	2734	$self->enter_link;
1649		2735
1650	(cf::async {	2736	(async {
		2737	$Coro::current->{desc} = "enter_exit";
		2738
1651	unless (eval {	2739	unless (eval {
		2740	$self->deactivate_recursive; # just to be sure
		2741
		2742	# random map handling
		2743	{
		2744	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2745
1652	prepare_random_map $exit	2746	prepare_random_map $exit
1653	if $exit->slaying eq "/!";	2747	if $exit->slaying eq "/!";
		2748	}
1654		2749
1655	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2750	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1656	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);	2751	my $x = $exit->stats->hp;
		2752	my $y = $exit->stats->sp;
1657		2753
		2754	$self->goto ($map, $x, $y);
		2755
		2756	# if exit is damned, update players death & WoR home-position
		2757	$self->contr->savebed ($map, $x, $y)
		2758	if $exit->flag (cf::FLAG_DAMNED);
		2759
1658	1;	2760	1
1659	}) {	2761	}) {
1660	$self->message ("Something went wrong deep within the crossfire server. "	2762	$self->message ("Something went wrong deep within the deliantra server. "
1661	. "I'll try to bring you back to the map you were before. "	2763	. "I'll try to bring you back to the map you were before. "
1662	. "Please report this to the dungeon master",	2764	. "Please report this to the dungeon master!",
1663	cf::NDI_UNIQUE | cf::NDI_RED);	2765	cf::NDI_UNIQUE | cf::NDI_RED);
1664		2766
1665	warn "ERROR in enter_exit: $@";	2767	warn "ERROR in enter_exit: $@";
1666	$self->leave_link;	2768	$self->leave_link;
1667	}	2769	}
1668	})->prio (1);	2770	})->prio (1);
…		…
1681		2783
1682	sub cf::client::send_drawinfo {	2784	sub cf::client::send_drawinfo {
1683	my ($self, $text, $flags) = @_;	2785	my ($self, $text, $flags) = @_;
1684		2786
1685	utf8::encode $text;	2787	utf8::encode $text;
1686	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2788	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1687	}	2789	}
1688		2790
		2791	=item $client->send_big_packet ($pkt)
		2792
		2793	Like C<send_packet>, but tries to compress large packets, and fragments
		2794	them as required.
		2795
		2796	=cut
		2797
		2798	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2799
		2800	sub cf::client::send_big_packet {
		2801	my ($self, $pkt) = @_;
		2802
		2803	# try lzf for large packets
		2804	$pkt = "lzf " . Compress::LZF::compress $pkt
		2805	if 1024 <= length $pkt and $self->{can_lzf};
		2806
		2807	# split very large packets
		2808	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2809	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2810	$pkt = "frag";
		2811	}
		2812
		2813	$self->send_packet ($pkt);
		2814	}
		2815
		2816	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2817
		2818	Send a drawinfo or msg packet to the client, formatting the msg for the
		2819	client if neccessary. C<$type> should be a string identifying the type of
		2820	the message, with C<log> being the default. If C<$color> is negative, suppress
		2821	the message unless the client supports the msg packet.
		2822
		2823	=cut
		2824
		2825	# non-persistent channels (usually the info channel)
		2826	our %CHANNEL = (
		2827	"c/motd" => {
		2828	id => "infobox",
		2829	title => "MOTD",
		2830	reply => undef,
		2831	tooltip => "The message of the day",
		2832	},
		2833	"c/identify" => {
		2834	id => "infobox",
		2835	title => "Identify",
		2836	reply => undef,
		2837	tooltip => "Items recently identified",
		2838	},
		2839	"c/examine" => {
		2840	id => "infobox",
		2841	title => "Examine",
		2842	reply => undef,
		2843	tooltip => "Signs and other items you examined",
		2844	},
		2845	"c/shopinfo" => {
		2846	id => "infobox",
		2847	title => "Shop Info",
		2848	reply => undef,
		2849	tooltip => "What your bargaining skill tells you about the shop",
		2850	},
		2851	"c/book" => {
		2852	id => "infobox",
		2853	title => "Book",
		2854	reply => undef,
		2855	tooltip => "The contents of a note or book",
		2856	},
		2857	"c/lookat" => {
		2858	id => "infobox",
		2859	title => "Look",
		2860	reply => undef,
		2861	tooltip => "What you saw there",
		2862	},
		2863	"c/who" => {
		2864	id => "infobox",
		2865	title => "Players",
		2866	reply => undef,
		2867	tooltip => "Shows players who are currently online",
		2868	},
		2869	"c/body" => {
		2870	id => "infobox",
		2871	title => "Body Parts",
		2872	reply => undef,
		2873	tooltip => "Shows which body parts you posess and are available",
		2874	},
		2875	"c/statistics" => {
		2876	id => "infobox",
		2877	title => "Statistics",
		2878	reply => undef,
		2879	tooltip => "Shows your primary statistics",
		2880	},
		2881	"c/skills" => {
		2882	id => "infobox",
		2883	title => "Skills",
		2884	reply => undef,
		2885	tooltip => "Shows your experience per skill and item power",
		2886	},
		2887	"c/shopitems" => {
		2888	id => "infobox",
		2889	title => "Shop Items",
		2890	reply => undef,
		2891	tooltip => "Shows the items currently for sale in this shop",
		2892	},
		2893	"c/resistances" => {
		2894	id => "infobox",
		2895	title => "Resistances",
		2896	reply => undef,
		2897	tooltip => "Shows your resistances",
		2898	},
		2899	"c/pets" => {
		2900	id => "infobox",
		2901	title => "Pets",
		2902	reply => undef,
		2903	tooltip => "Shows information abotu your pets/a specific pet",
		2904	},
		2905	"c/perceiveself" => {
		2906	id => "infobox",
		2907	title => "Perceive Self",
		2908	reply => undef,
		2909	tooltip => "You gained detailed knowledge about yourself",
		2910	},
		2911	"c/uptime" => {
		2912	id => "infobox",
		2913	title => "Uptime",
		2914	reply => undef,
		2915	tooltip => "How long the server has been running since last restart",
		2916	},
		2917	"c/mapinfo" => {
		2918	id => "infobox",
		2919	title => "Map Info",
		2920	reply => undef,
		2921	tooltip => "Information related to the maps",
		2922	},
		2923	"c/party" => {
		2924	id => "party",
		2925	title => "Party",
		2926	reply => "gsay ",
		2927	tooltip => "Messages and chat related to your party",
		2928	},
		2929	"c/death" => {
		2930	id => "death",
		2931	title => "Death",
		2932	reply => undef,
		2933	tooltip => "Reason for and more info about your most recent death",
		2934	},
		2935	"c/say" => $SAY_CHANNEL,
		2936	"c/chat" => $CHAT_CHANNEL,
		2937	);
		2938
		2939	sub cf::client::send_msg {
		2940	my ($self, $channel, $msg, $color, @extra) = @_;
		2941
		2942	$msg = $self->pl->expand_cfpod ($msg)
		2943	unless $color & cf::NDI_VERBATIM;
		2944
		2945	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2946
		2947	# check predefined channels, for the benefit of C
		2948	if ($CHANNEL{$channel}) {
		2949	$channel = $CHANNEL{$channel};
		2950
		2951	$self->ext_msg (channel_info => $channel);
		2952	$channel = $channel->{id};
		2953
		2954	} elsif (ref $channel) {
		2955	# send meta info to client, if not yet sent
		2956	unless (exists $self->{channel}{$channel->{id}}) {
		2957	$self->{channel}{$channel->{id}} = $channel;
		2958	$self->ext_msg (channel_info => $channel);
		2959	}
		2960
		2961	$channel = $channel->{id};
		2962	}
		2963
		2964	return unless @extra || length $msg;
		2965
		2966	# default colour, mask it out
		2967	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2968	if $color & cf::NDI_DEF;
		2969
		2970	my $pkt = "msg "
		2971	. $self->{json_coder}->encode (
		2972	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2973	);
		2974
		2975	$self->send_big_packet ($pkt);
		2976	}
		2977
		2978	=item $client->ext_msg ($type, @msg)
		2979
		2980	Sends an ext event to the client.
		2981
		2982	=cut
		2983
		2984	sub cf::client::ext_msg($$@) {
		2985	my ($self, $type, @msg) = @_;
		2986
		2987	if ($self->extcmd == 2) {
		2988	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2989	} elsif ($self->extcmd == 1) { # TODO: remove
		2990	push @msg, msgtype => "event_$type";
		2991	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2992	}
		2993	}
		2994
		2995	=item $client->ext_reply ($msgid, @msg)
		2996
		2997	Sends an ext reply to the client.
		2998
		2999	=cut
		3000
		3001	sub cf::client::ext_reply($$@) {
		3002	my ($self, $id, @msg) = @_;
		3003
		3004	if ($self->extcmd == 2) {
		3005	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3006	} elsif ($self->extcmd == 1) {
		3007	#TODO: version 1, remove
		3008	unshift @msg, msgtype => "reply", msgid => $id;
		3009	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3010	}
		3011	}
1689		3012
1690	=item $success = $client->query ($flags, "text", \&cb)	3013	=item $success = $client->query ($flags, "text", \&cb)
1691		3014
1692	Queues a query to the client, calling the given callback with	3015	Queues a query to the client, calling the given callback with
1693	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3016	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1694	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3017	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1695		3018
1696	Queries can fail, so check the return code. Or don't, as queries will become	3019	Queries can fail, so check the return code. Or don't, as queries will
1697	reliable at some point in the future.	3020	become reliable at some point in the future.
1698		3021
1699	=cut	3022	=cut
1700		3023
1701	sub cf::client::query {	3024	sub cf::client::query {
1702	my ($self, $flags, $text, $cb) = @_;	3025	my ($self, $flags, $text, $cb) = @_;
…		…
1710	utf8::encode $text;	3033	utf8::encode $text;
1711	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3034	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1712		3035
1713	$self->send_packet ($self->{query_queue}[0][0])	3036	$self->send_packet ($self->{query_queue}[0][0])
1714	if @{ $self->{query_queue} } == 1;	3037	if @{ $self->{query_queue} } == 1;
		3038
		3039	1
1715	}	3040	}
1716		3041
1717	cf::client->attach (	3042	cf::client->attach (
		3043	on_connect => sub {
		3044	my ($ns) = @_;
		3045
		3046	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3047	},
1718	on_reply => sub {	3048	on_reply => sub {
1719	my ($ns, $msg) = @_;	3049	my ($ns, $msg) = @_;
1720		3050
1721	# this weird shuffling is so that direct followup queries	3051	# this weird shuffling is so that direct followup queries
1722	# get handled first	3052	# get handled first
1723	my $queue = delete $ns->{query_queue}	3053	my $queue = delete $ns->{query_queue}
1724	or return; # be conservative, not sure how that can happen, but we saw a crash here	3054	or return; # be conservative, not sure how that can happen, but we saw a crash here
1725		3055
1726	(shift @$queue)->[1]->($msg);	3056	(shift @$queue)->[1]->($msg);
		3057	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1727		3058
1728	push @{ $ns->{query_queue} }, @$queue;	3059	push @{ $ns->{query_queue} }, @$queue;
1729		3060
1730	if (@{ $ns->{query_queue} } == @$queue) {	3061	if (@{ $ns->{query_queue} } == @$queue) {
1731	if (@$queue) {	3062	if (@$queue) {
…		…
1733	} else {	3064	} else {
1734	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3065	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1735	}	3066	}
1736	}	3067	}
1737	},	3068	},
		3069	on_exticmd => sub {
		3070	my ($ns, $buf) = @_;
		3071
		3072	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3073
		3074	if (ref $msg) {
		3075	my ($type, $reply, @payload) =
		3076	"ARRAY" eq ref $msg
		3077	? @$msg
		3078	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3079
		3080	my @reply;
		3081
		3082	if (my $cb = $EXTICMD{$type}) {
		3083	@reply = $cb->($ns, @payload);
		3084	}
		3085
		3086	$ns->ext_reply ($reply, @reply)
		3087	if $reply;
		3088
		3089	} else {
		3090	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3091	}
		3092
		3093	cf::override;
		3094	},
1738	);	3095	);
1739		3096
1740	=item $client->coro (\&cb)	3097	=item $client->async (\&cb)
1741		3098
1742	Create a new coroutine, running the specified callback. The coroutine will	3099	Create a new coroutine, running the specified callback. The coroutine will
1743	be automatically cancelled when the client gets destroyed (e.g. on logout,	3100	be automatically cancelled when the client gets destroyed (e.g. on logout,
1744	or loss of connection).	3101	or loss of connection).
1745		3102
1746	=cut	3103	=cut
1747		3104
1748	sub cf::client::coro {	3105	sub cf::client::async {
1749	my ($self, $cb) = @_;	3106	my ($self, $cb) = @_;
1750		3107
1751	my $coro = &cf::async ($cb);	3108	my $coro = &Coro::async ($cb);
1752		3109
1753	$coro->on_destroy (sub {	3110	$coro->on_destroy (sub {
1754	delete $self->{_coro}{$coro+0};	3111	delete $self->{_coro}{$coro+0};
1755	});	3112	});
1756		3113
…		…
1783	our $safe = new Safe "safe";	3140	our $safe = new Safe "safe";
1784	our $safe_hole = new Safe::Hole;	3141	our $safe_hole = new Safe::Hole;
1785		3142
1786	$SIG{FPE} = 'IGNORE';	3143	$SIG{FPE} = 'IGNORE';
1787		3144
1788	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3145	$safe->permit_only (Opcode::opset qw(
		3146	:base_core :base_mem :base_orig :base_math :base_loop
		3147	grepstart grepwhile mapstart mapwhile
		3148	sort time
		3149	));
1789		3150
1790	# here we export the classes and methods available to script code	3151	# here we export the classes and methods available to script code
1791		3152
1792	=pod	3153	=pod
1793		3154
1794	The following fucntions and emthods are available within a safe environment:	3155	The following functions and methods are available within a safe environment:
1795		3156
1796	cf::object contr pay_amount pay_player map	3157	cf::object
		3158	contr pay_amount pay_player map x y force_find force_add destroy
		3159	insert remove name archname title slaying race decrease split
		3160	value
		3161
1797	cf::object::player player	3162	cf::object::player
1798	cf::player peaceful	3163	player
1799	cf::map trigger	3164
		3165	cf::player
		3166	peaceful
		3167
		3168	cf::map
		3169	trigger
1800		3170
1801	=cut	3171	=cut
1802		3172
1803	for (	3173	for (
1804	["cf::object" => qw(contr pay_amount pay_player map)],	3174	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3175	insert remove inv nrof name archname title slaying race
		3176	decrease split destroy change_exp value msg lore send_msg)],
1805	["cf::object::player" => qw(player)],	3177	["cf::object::player" => qw(player)],
1806	["cf::player" => qw(peaceful)],	3178	["cf::player" => qw(peaceful send_msg)],
1807	["cf::map" => qw(trigger)],	3179	["cf::map" => qw(trigger)],
1808	) {	3180	) {
1809	no strict 'refs';	3181	no strict 'refs';
1810	my ($pkg, @funs) = @$_;	3182	my ($pkg, @funs) = @$_;
1811	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3183	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
1829		3201
1830	my $qcode = $code;	3202	my $qcode = $code;
1831	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3203	$qcode =~ s/"/‟/g; # not allowed in #line filenames
1832	$qcode =~ s/\n/\\n/g;	3204	$qcode =~ s/\n/\\n/g;
1833		3205
		3206	%vars = (_dummy => 0) unless %vars;
		3207
		3208	my @res;
1834	local $_;	3209	local $_;
1835	local @safe::cf::_safe_eval_args = values %vars;
1836		3210
1837	my $eval =	3211	my $eval =
1838	"do {\n"	3212	"do {\n"
1839	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3213	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
1840	. "#line 0 \"{$qcode}\"\n"	3214	. "#line 0 \"{$qcode}\"\n"
1841	. $code	3215	. $code
1842	. "\n}"	3216	. "\n}"
1843	;	3217	;
1844		3218
		3219	if ($CFG{safe_eval}) {
1845	sub_generation_inc;	3220	sub_generation_inc;
		3221	local @safe::cf::_safe_eval_args = values %vars;
1846	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3222	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
1847	sub_generation_inc;	3223	sub_generation_inc;
		3224	} else {
		3225	local @cf::_safe_eval_args = values %vars;
		3226	@res = wantarray ? eval eval : scalar eval $eval;
		3227	}
1848		3228
1849	if ($@) {	3229	if ($@) {
1850	warn "$@";	3230	warn "$@";
1851	warn "while executing safe code '$code'\n";	3231	warn "while executing safe code '$code'\n";
1852	warn "with arguments " . (join " ", %vars) . "\n";	3232	warn "with arguments " . (join " ", %vars) . "\n";
…		…
1880	=back	3260	=back
1881		3261
1882	=cut	3262	=cut
1883		3263
1884	#############################################################################	3264	#############################################################################
		3265	# the server's init and main functions
1885		3266
1886	=head2 EXTENSION DATABASE SUPPORT	3267	sub load_facedata($) {
		3268	my ($path) = @_;
1887		3269
1888	Crossfire maintains a very simple database for extension use. It can	3270	# HACK to clear player env face cache, we need some signal framework
1889	currently store anything that can be serialised using Storable, which	3271	# for this (global event?)
1890	excludes objects.	3272	%ext::player_env::MUSIC_FACE_CACHE = ();
1891		3273
1892	The parameter C<$family> should best start with the name of the extension	3274	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1893	using it, it should be unique.
1894		3275
1895	=over 4	3276	warn "loading facedata from $path\n";
1896		3277
1897	=item $hashref = cf::db_get $family	3278	my $facedata;
		3279	0 < aio_load $path, $facedata
		3280	or die "$path: $!";
1898		3281
1899	Return a hashref for use by the extension C<$family>, which can be	3282	$facedata = Coro::Storable::thaw $facedata;
1900	modified. After modifications, you have to call C<cf::db_dirty> or
1901	C<cf::db_sync>.
1902		3283
1903	=item $value = cf::db_get $family => $key	3284	$facedata->{version} == 2
		3285	or cf::cleanup "$path: version mismatch, cannot proceed.";
1904		3286
1905	Returns a single value from the database	3287	# patch in the exptable
1906		3288	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
1907	=item cf::db_put $family => $hashref	3289	$facedata->{resource}{"res/exp_table"} = {
1908		3290	type => FT_RSRC,
1909	Stores the given family hashref into the database. Updates are delayed, if	3291	data => $exp_table,
1910	you want the data to be synced to disk immediately, use C<cf::db_sync>.	3292	hash => (Digest::MD5::md5 $exp_table),
1911
1912	=item cf::db_put $family => $key => $value
1913
1914	Stores the given C<$value> in the family hash. Updates are delayed, if you
1915	want the data to be synced to disk immediately, use C<cf::db_sync>.
1916
1917	=item cf::db_dirty
1918
1919	Marks the database as dirty, to be updated at a later time.
1920
1921	=item cf::db_sync
1922
1923	Immediately write the database to disk I<if it is dirty>.
1924
1925	=cut
1926
1927	our $DB;
1928
1929	{
1930	my $path = cf::localdir . "/database.pst";
1931
1932	sub db_load() {
1933	$DB = stat $path ? Storable::retrieve $path : { };
1934	}
1935
1936	my $pid;
1937
1938	sub db_save() {
1939	waitpid $pid, 0 if $pid;
1940	if (0 == ($pid = fork)) {
1941	$DB->{_meta}{version} = 1;
1942	Storable::nstore $DB, "$path~";
1943	rename "$path~", $path;
1944	cf::_exit 0 if defined $pid;
1945	}
1946	}
1947
1948	my $dirty;
1949
1950	sub db_sync() {
1951	db_save if $dirty;
1952	undef $dirty;
1953	}
1954
1955	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1956	db_sync;
1957	});	3293	};
		3294	cf::cede_to_tick;
1958		3295
1959	sub db_dirty() {
1960	$dirty = 1;
1961	$idle->start;
1962	}	3296	{
		3297	my $faces = $facedata->{faceinfo};
1963		3298
1964	sub db_get($;$) {	3299	while (my ($face, $info) = each %$faces) {
1965	@_ >= 2	3300	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1966	? $DB->{$_[0]}{$_[1]}
1967	: ($DB->{$_[0]} ||= { })
1968	}
1969		3301
1970	sub db_put($$;$) {	3302	cf::face::set_visibility $idx, $info->{visibility};
1971	if (@_ >= 3) {	3303	cf::face::set_magicmap $idx, $info->{magicmap};
1972	$DB->{$_[0]}{$_[1]} = $_[2];	3304	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
1973	} else {	3305	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
1974	$DB->{$_[0]} = $_[1];
1975	}
1976	db_dirty;
1977	}
1978		3306
1979	cf::global->attach (	3307	cf::cede_to_tick;
1980	prio => 10000,
1981	on_cleanup => sub {
1982	db_sync;
1983	},	3308	}
1984	);
1985	}
1986		3309
1987	#############################################################################	3310	while (my ($face, $info) = each %$faces) {
1988	# the server's main()	3311	next unless $info->{smooth};
1989		3312
1990	sub cfg_load {	3313	my $idx = cf::face::find $face
		3314	or next;
		3315
		3316	if (my $smooth = cf::face::find $info->{smooth}) {
		3317	cf::face::set_smooth $idx, $smooth;
		3318	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3319	} else {
		3320	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3321	}
		3322
		3323	cf::cede_to_tick;
		3324	}
		3325	}
		3326
		3327	{
		3328	my $anims = $facedata->{animinfo};
		3329
		3330	while (my ($anim, $info) = each %$anims) {
		3331	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3332	cf::cede_to_tick;
		3333	}
		3334
		3335	cf::anim::invalidate_all; # d'oh
		3336	}
		3337
		3338	{
		3339	my $res = $facedata->{resource};
		3340
		3341	while (my ($name, $info) = each %$res) {
		3342	if (defined $info->{type}) {
		3343	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3344
		3345	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3346	cf::face::set_type $idx, $info->{type};
		3347	} else {
		3348	$RESOURCE{$name} = $info;
		3349	}
		3350
		3351	cf::cede_to_tick;
		3352	}
		3353	}
		3354
		3355	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3356
		3357	1
		3358	}
		3359
		3360	cf::global->attach (on_resource_update => sub {
		3361	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3362	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3363
		3364	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3365	my $sound = $soundconf->{compat}[$_]
		3366	or next;
		3367
		3368	my $face = cf::face::find "sound/$sound->[1]";
		3369	cf::sound::set $sound->[0] => $face;
		3370	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3371	}
		3372
		3373	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3374	my $face = cf::face::find "sound/$v";
		3375	cf::sound::set $k => $face;
		3376	}
		3377	}
		3378	});
		3379
		3380	register_exticmd fx_want => sub {
		3381	my ($ns, $want) = @_;
		3382
		3383	while (my ($k, $v) = each %$want) {
		3384	$ns->fx_want ($k, $v);
		3385	}
		3386	};
		3387
		3388	sub load_resource_file($) {
		3389	my $guard = lock_acquire "load_resource_file";
		3390
		3391	my $status = load_resource_file_ $_[0];
		3392	get_slot 0.1, 100;
		3393	cf::arch::commit_load;
		3394
		3395	$status
		3396	}
		3397
		3398	sub reload_regions {
		3399	# HACK to clear player env face cache, we need some signal framework
		3400	# for this (global event?)
		3401	%ext::player_env::MUSIC_FACE_CACHE = ();
		3402
		3403	load_resource_file "$MAPDIR/regions"
		3404	or die "unable to load regions file\n";
		3405
		3406	for (cf::region::list) {
		3407	$_->{match} = qr/$_->{match}/
		3408	if exists $_->{match};
		3409	}
		3410	}
		3411
		3412	sub reload_facedata {
		3413	load_facedata "$DATADIR/facedata"
		3414	or die "unable to load facedata\n";
		3415	}
		3416
		3417	sub reload_archetypes {
		3418	load_resource_file "$DATADIR/archetypes"
		3419	or die "unable to load archetypes\n";
		3420	}
		3421
		3422	sub reload_treasures {
		3423	load_resource_file "$DATADIR/treasures"
		3424	or die "unable to load treasurelists\n";
		3425	}
		3426
		3427	sub reload_resources {
		3428	warn "reloading resource files...\n";
		3429
		3430	reload_facedata;
		3431	reload_archetypes;
		3432	reload_regions;
		3433	reload_treasures;
		3434
		3435	warn "finished reloading resource files\n";
		3436	}
		3437
		3438	sub reload_config {
		3439	warn "reloading config file...\n";
		3440
1991	open my $fh, "<:utf8", cf::confdir . "/config"	3441	open my $fh, "<:utf8", "$CONFDIR/config"
1992	or return;	3442	or return;
1993		3443
1994	local $/;	3444	local $/;
1995	*CFG = YAML::Syck::Load <$fh>;	3445	*CFG = YAML::XS::Load scalar <$fh>;
1996		3446
1997	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3447	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		3448
		3449	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3450	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
1998		3451
1999	if (exists $CFG{mlockall}) {	3452	if (exists $CFG{mlockall}) {
2000	eval {	3453	eval {
2001	$CFG{mlockall} ? &mlockall : &munlockall	3454	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2002	and die "WARNING: m(un)lockall failed: $!\n";	3455	and die "WARNING: m(un)lockall failed: $!\n";
2003	};	3456	};
2004	warn $@ if $@;	3457	warn $@ if $@;
2005	}	3458	}
		3459
		3460	warn "finished reloading resource files\n";
		3461	}
		3462
		3463	sub pidfile() {
		3464	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3465	or die "$PIDFILE: $!";
		3466	flock $fh, &Fcntl::LOCK_EX
		3467	or die "$PIDFILE: flock: $!";
		3468	$fh
		3469	}
		3470
		3471	# make sure only one server instance is running at any one time
		3472	sub atomic {
		3473	my $fh = pidfile;
		3474
		3475	my $pid = <$fh>;
		3476	kill 9, $pid if $pid > 0;
		3477
		3478	seek $fh, 0, 0;
		3479	print $fh $$;
		3480	}
		3481
		3482	sub main_loop {
		3483	warn "EV::loop starting\n";
		3484	if (1) {
		3485	EV::loop;
		3486	}
		3487	warn "EV::loop returned\n";
		3488	goto &main_loop unless $REALLY_UNLOOP;
2006	}	3489	}
2007		3490
2008	sub main {	3491	sub main {
		3492	cf::init_globals; # initialise logging
		3493
		3494	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3495	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3496	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3497	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3498
		3499	cf::init_experience;
		3500	cf::init_anim;
		3501	cf::init_attackmess;
		3502	cf::init_dynamic;
		3503
		3504	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3505
2009	# we must not ever block the main coroutine	3506	# we must not ever block the main coroutine
2010	local $Coro::idle = sub {	3507	local $Coro::idle = sub {
2011	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3508	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2012	(Coro::unblock_sub {	3509	(async {
2013	Event::one_event;	3510	$Coro::current->{desc} = "IDLE BUG HANDLER";
2014	})->();	3511	EV::loop EV::LOOP_ONESHOT;
		3512	})->prio (Coro::PRIO_MAX);
2015	};	3513	};
2016		3514
2017	cfg_load;	3515	evthread_start IO::AIO::poll_fileno;
2018	db_load;	3516
		3517	cf::sync_job {
		3518	cf::load_settings;
		3519	cf::load_materials;
		3520
		3521	reload_resources;
		3522	reload_config;
		3523	db_init;
		3524
		3525	cf::init_uuid;
		3526	cf::init_signals;
		3527	cf::init_commands;
		3528	cf::init_skills;
		3529
		3530	cf::init_beforeplay;
		3531
		3532	atomic;
		3533
2019	load_extensions;	3534	load_extensions;
2020	Event::loop;	3535
		3536	utime time, time, $RUNTIMEFILE;
		3537
		3538	# no (long-running) fork's whatsoever before this point(!)
		3539	use POSIX ();
		3540	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3541
		3542	(pop @POST_INIT)->(0) while @POST_INIT;
		3543	};
		3544
		3545	main_loop;
2021	}	3546	}
2022		3547
2023	#############################################################################	3548	#############################################################################
2024	# initialisation	3549	# initialisation and cleanup
2025		3550
		3551	# install some emergency cleanup handlers
		3552	BEGIN {
		3553	our %SIGWATCHER = ();
		3554	for my $signal (qw(INT HUP TERM)) {
		3555	$SIGWATCHER{$signal} = EV::signal $signal, sub {
		3556	cf::cleanup "SIG$signal";
		3557	};
		3558	}
		3559	}
		3560
		3561	sub write_runtime_sync {
		3562	# first touch the runtime file to show we are still running:
		3563	# the fsync below can take a very very long time.
		3564
		3565	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3566
		3567	my $guard = cf::lock_acquire "write_runtime";
		3568
		3569	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3570	or return;
		3571
		3572	my $value = $cf::RUNTIME + 90 + 10;
		3573	# 10 is the runtime save interval, for a monotonic clock
		3574	# 60 allows for the watchdog to kill the server.
		3575
		3576	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3577	and return;
		3578
		3579	# always fsync - this file is important
		3580	aio_fsync $fh
		3581	and return;
		3582
		3583	# touch it again to show we are up-to-date
		3584	aio_utime $fh, undef, undef;
		3585
		3586	close $fh
		3587	or return;
		3588
		3589	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3590	and return;
		3591
		3592	warn "runtime file written.\n";
		3593
		3594	1
		3595	}
		3596
		3597	our $uuid_lock;
		3598	our $uuid_skip;
		3599
		3600	sub write_uuid_sync($) {
		3601	$uuid_skip ||= $_[0];
		3602
		3603	return if $uuid_lock;
		3604	local $uuid_lock = 1;
		3605
		3606	my $uuid = "$LOCALDIR/uuid";
		3607
		3608	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3609	or return;
		3610
		3611	my $value = uuid_seq uuid_cur;
		3612
		3613	unless ($value) {
		3614	warn "cowardly refusing to write zero uuid value!\n";
		3615	return;
		3616	}
		3617
		3618	my $value = uuid_str $value + $uuid_skip;
		3619	$uuid_skip = 0;
		3620
		3621	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3622	and return;
		3623
		3624	# always fsync - this file is important
		3625	aio_fsync $fh
		3626	and return;
		3627
		3628	close $fh
		3629	or return;
		3630
		3631	aio_rename "$uuid~", $uuid
		3632	and return;
		3633
		3634	warn "uuid file written ($value).\n";
		3635
		3636	1
		3637
		3638	}
		3639
		3640	sub write_uuid($$) {
		3641	my ($skip, $sync) = @_;
		3642
		3643	$sync ? write_uuid_sync $skip
		3644	: async { write_uuid_sync $skip };
		3645	}
		3646
		3647	sub emergency_save() {
		3648	my $freeze_guard = cf::freeze_mainloop;
		3649
		3650	warn "emergency_perl_save: enter\n";
		3651
		3652	cf::sync_job {
		3653	# this is a trade-off: we want to be very quick here, so
		3654	# save all maps without fsync, and later call a global sync
		3655	# (which in turn might be very very slow)
		3656	local $USE_FSYNC = 0;
		3657
		3658	# use a peculiar iteration method to avoid tripping on perl
		3659	# refcount bugs in for. also avoids problems with players
		3660	# and maps saved/destroyed asynchronously.
		3661	warn "emergency_perl_save: begin player save\n";
		3662	for my $login (keys %cf::PLAYER) {
		3663	my $pl = $cf::PLAYER{$login} or next;
		3664	$pl->valid or next;
		3665	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3666	$pl->save;
		3667	}
		3668	warn "emergency_perl_save: end player save\n";
		3669
		3670	warn "emergency_perl_save: begin map save\n";
		3671	for my $path (keys %cf::MAP) {
		3672	my $map = $cf::MAP{$path} or next;
		3673	$map->valid or next;
		3674	$map->save;
		3675	}
		3676	warn "emergency_perl_save: end map save\n";
		3677
		3678	warn "emergency_perl_save: begin database checkpoint\n";
		3679	BDB::db_env_txn_checkpoint $DB_ENV;
		3680	warn "emergency_perl_save: end database checkpoint\n";
		3681
		3682	warn "emergency_perl_save: begin write uuid\n";
		3683	write_uuid_sync 1;
		3684	warn "emergency_perl_save: end write uuid\n";
		3685	};
		3686
		3687	warn "emergency_perl_save: starting sync()\n";
		3688	IO::AIO::aio_sync sub {
		3689	warn "emergency_perl_save: finished sync()\n";
		3690	};
		3691
		3692	warn "emergency_perl_save: leave\n";
		3693	}
		3694
		3695	sub post_cleanup {
		3696	my ($make_core) = @_;
		3697
		3698	warn Carp::longmess "post_cleanup backtrace"
		3699	if $make_core;
		3700
		3701	my $fh = pidfile;
		3702	unlink $PIDFILE if <$fh> == $$;
		3703	}
		3704
		3705	# a safer delete_package, copied from Symbol
		3706	sub clear_package($) {
		3707	my $pkg = shift;
		3708
		3709	# expand to full symbol table name if needed
		3710	unless ($pkg =~ /^main::.*::$/) {
		3711	$pkg = "main$pkg" if $pkg =~ /^::/;
		3712	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3713	$pkg .= '::' unless $pkg =~ /::$/;
		3714	}
		3715
		3716	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3717	my $stem_symtab = *{$stem}{HASH};
		3718
		3719	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3720	or return;
		3721
		3722	# clear all symbols
		3723	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3724	for my $name (keys %$leaf_symtab) {
		3725	_gv_clear *{"$pkg$name"};
		3726	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3727	}
		3728	warn "cleared package $pkg\n";#d#
		3729	}
		3730
2026	sub reload() {	3731	sub do_reload_perl() {
2027	# can/must only be called in main	3732	# can/must only be called in main
2028	if ($Coro::current != $Coro::main) {	3733	if ($Coro::current != $Coro::main) {
2029	warn "can only reload from main coroutine\n";	3734	warn "can only reload from main coroutine";
2030	return;	3735	return;
2031	}	3736	}
2032		3737
		3738	return if $RELOAD++;
		3739
		3740	my $t1 = EV::time;
		3741
		3742	while ($RELOAD) {
2033	warn "reloading...";	3743	warn "reloading...";
2034		3744
2035	local $FREEZE = 1;	3745	warn "entering sync_job";
		3746
		3747	cf::sync_job {
		3748	cf::write_runtime_sync; # external watchdog should not bark
2036	cf::emergency_save;	3749	cf::emergency_save;
		3750	cf::write_runtime_sync; # external watchdog should not bark
2037		3751
2038	eval {	3752	warn "syncing database to disk";
		3753	BDB::db_env_txn_checkpoint $DB_ENV;
		3754
2039	# if anything goes wrong in here, we should simply crash as we already saved	3755	# if anything goes wrong in here, we should simply crash as we already saved
2040		3756
2041	# cancel all watchers	3757	warn "flushing outstanding aio requests";
2042	for (Event::all_watchers) {	3758	while (IO::AIO::nreqs || BDB::nreqs) {
2043	$_->cancel if $_->data & WF_AUTOCANCEL;	3759	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2044	}
2045
2046	# cancel all extension coros
2047	$_->cancel for values %EXT_CORO;
2048	%EXT_CORO = ();
2049
2050	# unload all extensions
2051	for (@exts) {
2052	warn "unloading <$_>";
2053	unload_extension $_;
2054	}
2055
2056	# unload all modules loaded from $LIBDIR
2057	while (my ($k, $v) = each %INC) {
2058	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2059
2060	warn "removing <$k>";
2061	delete $INC{$k};
2062
2063	$k =~ s/\.pm$//;
2064	$k =~ s/\//::/g;
2065
2066	if (my $cb = $k->can ("unload_module")) {
2067	$cb->();
2068	}	3760	}
2069		3761
2070	Symbol::delete_package $k;	3762	warn "cancelling all extension coros";
		3763	$_->cancel for values %EXT_CORO;
		3764	%EXT_CORO = ();
		3765
		3766	warn "removing commands";
		3767	%COMMAND = ();
		3768
		3769	warn "removing ext/exti commands";
		3770	%EXTCMD = ();
		3771	%EXTICMD = ();
		3772
		3773	warn "unloading/nuking all extensions";
		3774	for my $pkg (@EXTS) {
		3775	warn "... unloading $pkg";
		3776
		3777	if (my $cb = $pkg->can ("unload")) {
		3778	eval {
		3779	$cb->($pkg);
		3780	1
		3781	} or warn "$pkg unloaded, but with errors: $@";
		3782	}
		3783
		3784	warn "... clearing $pkg";
		3785	clear_package $pkg;
2071	}	3786	}
2072		3787
2073	# sync database to disk	3788	warn "unloading all perl modules loaded from $LIBDIR";
2074	cf::db_sync;	3789	while (my ($k, $v) = each %INC) {
2075	IO::AIO::flush;	3790	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2076		3791
		3792	warn "... unloading $k";
		3793	delete $INC{$k};
		3794
		3795	$k =~ s/\.pm$//;
		3796	$k =~ s/\//::/g;
		3797
		3798	if (my $cb = $k->can ("unload_module")) {
		3799	$cb->();
		3800	}
		3801
		3802	clear_package $k;
		3803	}
		3804
2077	# get rid of safe::, as good as possible	3805	warn "getting rid of safe::, as good as possible";
2078	Symbol::delete_package "safe::$_"	3806	clear_package "safe::$_"
2079	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3807	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2080		3808
2081	# remove register_script_function callbacks	3809	warn "unloading cf.pm \"a bit\"";
2082	# TODO
2083
2084	# unload cf.pm "a bit"
2085	delete $INC{"cf.pm"};	3810	delete $INC{"cf.pm"};
		3811	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2086		3812
2087	# don't, removes xs symbols, too,	3813	# don't, removes xs symbols, too,
2088	# and global variables created in xs	3814	# and global variables created in xs
2089	#Symbol::delete_package __PACKAGE__;	3815	#clear_package __PACKAGE__;
2090		3816
2091	# reload cf.pm	3817	warn "unload completed, starting to reload now";
		3818
2092	warn "reloading cf.pm";	3819	warn "reloading cf.pm";
2093	require cf;	3820	require cf;
2094	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3821	cf::_connect_to_perl_1;
2095		3822
2096	# load config and database again	3823	warn "loading config and database again";
2097	cf::cfg_load;	3824	cf::reload_config;
2098	cf::db_load;
2099		3825
2100	# load extensions
2101	warn "load extensions";	3826	warn "loading extensions";
2102	cf::load_extensions;	3827	cf::load_extensions;
2103		3828
2104	# reattach attachments to objects	3829	if ($REATTACH_ON_RELOAD) {
		3830	warn "reattaching attachments to objects/players";
		3831	_global_reattach; # objects, sockets
		3832	warn "reattaching attachments to maps";
		3833	reattach $_ for values %MAP;
		3834	warn "reattaching attachments to players";
		3835	reattach $_ for values %PLAYER;
		3836	}
		3837
		3838	warn "running post_init jobs";
		3839	(pop @POST_INIT)->(1) while @POST_INIT;
		3840
		3841	warn "leaving sync_job";
		3842
		3843	1
		3844	} or do {
		3845	warn $@;
		3846	cf::cleanup "error while reloading, exiting.";
		3847	};
		3848
2105	warn "reattach";	3849	warn "reloaded";
2106	_global_reattach;	3850	--$RELOAD;
		3851	}
		3852
		3853	$t1 = EV::time - $t1;
		3854	warn "reload completed in ${t1}s\n";
		3855	};
		3856
		3857	our $RELOAD_WATCHER; # used only during reload
		3858
		3859	sub reload_perl() {
		3860	# doing reload synchronously and two reloads happen back-to-back,
		3861	# coro crashes during coro_state_free->destroy here.
		3862
		3863	$RELOAD_WATCHER ||= cf::async {
		3864	Coro::AIO::aio_wait cache_extensions;
		3865
		3866	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
		3867	do_reload_perl;
		3868	undef $RELOAD_WATCHER;
		3869	};
2107	};	3870	};
2108
2109	if ($@) {
2110	warn $@;
2111	warn "error while reloading, exiting.";
2112	exit 1;
2113	}
2114
2115	warn "reloaded successfully";
2116	};
2117
2118	#############################################################################
2119
2120	unless ($LINK_MAP) {
2121	$LINK_MAP = cf::map::new;
2122
2123	$LINK_MAP->width (41);
2124	$LINK_MAP->height (41);
2125	$LINK_MAP->alloc;
2126	$LINK_MAP->path ("{link}");
2127	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2128	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2129
2130	# dirty hack because... archetypes are not yet loaded
2131	Event->timer (
2132	after => 2,
2133	cb => sub {
2134	$_[0]->w->cancel;
2135
2136	# provide some exits "home"
2137	my $exit = cf::object::new "exit";
2138
2139	$exit->slaying ($EMERGENCY_POSITION->[0]);
2140	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2141	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2142
2143	$LINK_MAP->insert ($exit->clone, 19, 19);
2144	$LINK_MAP->insert ($exit->clone, 19, 20);
2145	$LINK_MAP->insert ($exit->clone, 19, 21);
2146	$LINK_MAP->insert ($exit->clone, 20, 19);
2147	$LINK_MAP->insert ($exit->clone, 20, 21);
2148	$LINK_MAP->insert ($exit->clone, 21, 19);
2149	$LINK_MAP->insert ($exit->clone, 21, 20);
2150	$LINK_MAP->insert ($exit->clone, 21, 21);
2151
2152	$exit->destroy;
2153	});
2154
2155	$LINK_MAP->{deny_save} = 1;
2156	$LINK_MAP->{deny_reset} = 1;
2157
2158	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2159	}	3871	}
2160
2161	register "<global>", __PACKAGE__;
2162		3872
2163	register_command "reload" => sub {	3873	register_command "reload" => sub {
2164	my ($who, $arg) = @_;	3874	my ($who, $arg) = @_;
2165		3875
2166	if ($who->flag (FLAG_WIZ)) {	3876	if ($who->flag (FLAG_WIZ)) {
2167	$who->message ("start of reload.");
2168	reload;
2169	$who->message ("end of reload.");	3877	$who->message ("reloading server.");
		3878	async {
		3879	$Coro::current->{desc} = "perl_reload";
		3880	reload_perl;
		3881	};
2170	}	3882	}
2171	};	3883	};
2172		3884
2173	unshift @INC, $LIBDIR;	3885	unshift @INC, $LIBDIR;
2174		3886
2175	$TICK_WATCHER = Event->timer (	3887	my $bug_warning = 0;
2176	reentrant => 0,	3888
2177	prio => 0,	3889	our @WAIT_FOR_TICK;
2178	at => $NEXT_TICK || $TICK,	3890	our @WAIT_FOR_TICK_BEGIN;
2179	data => WF_AUTOCANCEL,	3891
2180	cb => sub {	3892	sub wait_for_tick {
2181	unless ($FREEZE) {	3893	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		3894
		3895	my $signal = new Coro::Signal;
		3896	push @WAIT_FOR_TICK, $signal;
		3897	$signal->wait;
		3898	}
		3899
		3900	sub wait_for_tick_begin {
		3901	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		3902
		3903	my $signal = new Coro::Signal;
		3904	push @WAIT_FOR_TICK_BEGIN, $signal;
		3905	$signal->wait;
		3906	}
		3907
		3908	sub tick {
		3909	if ($Coro::current != $Coro::main) {
		3910	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3911	unless ++$bug_warning > 10;
		3912	return;
		3913	}
		3914
2182	cf::server_tick; # one server iteration	3915	cf::server_tick; # one server iteration
2183	$RUNTIME += $TICK;
2184	}
2185		3916
2186	$NEXT_TICK += $TICK;	3917	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2187		3918	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2188	# if we are delayed by four ticks or more, skip them all	3919	Coro::async_pool {
2189	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3920	$Coro::current->{desc} = "runtime saver";
2190
2191	$TICK_WATCHER->at ($NEXT_TICK);
2192	$TICK_WATCHER->start;
2193	},
2194	);
2195
2196	IO::AIO::max_poll_time $TICK * 0.2;
2197
2198	Event->io (
2199	fd => IO::AIO::poll_fileno,
2200	poll => 'r',
2201	prio => 5,
2202	data => WF_AUTOCANCEL,
2203	cb => \&IO::AIO::poll_cb,
2204	);
2205
2206	Event->timer (
2207	data => WF_AUTOCANCEL,
2208	after => 0,
2209	interval => 10,
2210	cb => sub {
2211	(Coro::unblock_sub {
2212	write_runtime	3921	write_runtime_sync
2213	or warn "ERROR: unable to write runtime file: $!";	3922	or warn "ERROR: unable to write runtime file: $!";
2214	})->();	3923	};
2215	},	3924	}
2216	);	3925
		3926	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3927	$sig->send;
		3928	}
		3929	while (my $sig = shift @WAIT_FOR_TICK) {
		3930	$sig->send;
		3931	}
		3932
		3933	$LOAD = ($NOW - $TICK_START) / $TICK;
		3934	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3935
		3936	if (0) {
		3937	if ($NEXT_TICK) {
		3938	my $jitter = $TICK_START - $NEXT_TICK;
		3939	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3940	warn "jitter $JITTER\n";#d#
		3941	}
		3942	}
		3943	}
		3944
		3945	{
		3946	# configure BDB
		3947
		3948	BDB::min_parallel 8;
		3949	BDB::max_poll_reqs $TICK * 0.1;
		3950	$AnyEvent::BDB::WATCHER->priority (1);
		3951
		3952	unless ($DB_ENV) {
		3953	$DB_ENV = BDB::db_env_create;
		3954	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3955	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3956	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3957	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3958	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3959
		3960	cf::sync_job {
		3961	eval {
		3962	BDB::db_env_open
		3963	$DB_ENV,
		3964	$BDBDIR,
		3965	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3966	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3967	0666;
		3968
		3969	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3970	};
		3971
		3972	cf::cleanup "db_env_open(db): $@" if $@;
		3973	};
		3974	}
		3975
		3976	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3977	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3978	};
		3979	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3980	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3981	};
		3982	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3983	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3984	};
		3985	}
		3986
		3987	{
		3988	# configure IO::AIO
		3989
		3990	IO::AIO::min_parallel 8;
		3991	IO::AIO::max_poll_time $TICK * 0.1;
		3992	undef $AnyEvent::AIO::WATCHER;
		3993	}
		3994
		3995	my $_log_backtrace;
		3996
		3997	sub _log_backtrace {
		3998	my ($msg, @addr) = @_;
		3999
		4000	$msg =~ s/\n//;
		4001
		4002	# limit the # of concurrent backtraces
		4003	if ($_log_backtrace < 2) {
		4004	++$_log_backtrace;
		4005	my $perl_bt = Carp::longmess $msg;
		4006	async {
		4007	$Coro::current->{desc} = "abt $msg";
		4008
		4009	my @bt = fork_call {
		4010	@addr = map { sprintf "%x", $_ } @addr;
		4011	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4012	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4013	or die "addr2line: $!";
		4014
		4015	my @funcs;
		4016	my @res = <$fh>;
		4017	chomp for @res;
		4018	while (@res) {
		4019	my ($func, $line) = splice @res, 0, 2, ();
		4020	push @funcs, "[$func] $line";
		4021	}
		4022
		4023	@funcs
		4024	};
		4025
		4026	LOG llevInfo, "[ABT] $perl_bt\n";
		4027	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4028	LOG llevInfo, "[ABT] $_\n" for @bt;
		4029	--$_log_backtrace;
		4030	};
		4031	} else {
		4032	LOG llevInfo, "[ABT] $msg\n";
		4033	LOG llevInfo, "[ABT] [suppressed]\n";
		4034	}
		4035	}
		4036
		4037	# load additional modules
		4038	require "cf/$_.pm" for @EXTRA_MODULES;
		4039	cf::_connect_to_perl_2;
2217		4040
2218	END { cf::emergency_save }	4041	END { cf::emergency_save }
2219		4042
2220	1	4043	1
2221		4044

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